- Open Access
The relationships between patient safety culture and sentinel events among hospitals in Saudi Arabia: a national descriptive study
BMC Health Services Research volume 23, Article number: 270 (2023)
Sentinel events (SEs) can result in severe and unwanted outcomes. To minimize the fear of sentinel events reporting and the occurrence of sentinel events, patient safety culture improvements within healthcare organizations is needed. To our knowledge, limited studies explored the relationships between patient safety culture and sentinel events on a local level and no research has been conducted at the national level in Saudi Arabia.
This study aimed to explore the relationships between the patient safety culture and the reported-SEs on a national level during the year 2020 in Saudi hospitals.
This was a descriptive study. We utilized two data sources (the reported-SEs and the patient safety culture survey) that were linked using hospitals information. To explore the relationships between patient safety culture and reported-SEs rates, we performed descriptive statistics, a test of independence, post-hoc analysis, correlation analysis, and multivariate regression and stepwise analyses.
The highest positive domain scores in patient safety culture domains in the Saudi hospitals (n = 366) were “Teamwork Within Units” (80.65%) and “Organizational learning-continuous improvement” (80.33%), and the lowest were “Staffing” (32.10%) and “Nonpunitive Response to Error” (26.19%). The highest numbers of reported-SEs in 103 hospitals were related to the contributory factors of “Communication and Information” (63.20%) and “Staff Competency and Performance” (61.04%). The correlation analysis performed on 89 Saudi hospitals showed that higher positive patient safety culture scores were significantly associated with lower rates of reported-SEs in 3 out of the 12 domains, which are “Teamwork Within Units”, “Communication Openness”, and “Handoffs and Transitions”. Multivariate analyses showed that “Handoffs and Transitions”, “Nonpunitive Response to Error”, and “Teamwork Within Units” domains were significant predictors of the number of SEs. The "Staff Competency and Performance" and "Environmental Factors" were the most contributory factors of SEs in the number of significant correlations with the patient safety culture domains.
This study identified patient safety culture areas of improvement where hospitals in Saudi Arabia need actions. Our study confirms that a more positive patient safety culture is associated with lower occurrence of sentinel events. To minimize the fear of sentinel events reporting and to improve overall patient safety a culture change is needed by promoting a blame-free culture and improving teamwork, handoffs, and communication openness.
Medical errors were reported as the third major cause of death in the United States (US) in 2016 and it has been estimated that avoidable errors contribute to 1708 death per year in the United Kingdom [1,2,3]. Medical errors can result in financial costs estimated at billions of dollars yearly as well as psychological and physical harm to patients leading to a lack of trust in the healthcare systems . To Err Is Human report  was published by the Institute of Medicine (IOM) in 2000 and highlights the responsibility of healthcare professionals in improving the patient safety culture aiming for better patient outcomes . This problem is not blamed on people but rather on healthcare systems that need to be safer . The most severe errors are called sentinel event (SE), which is defined by the Joint Commission as “the patient safety event that results in death, permanent harm, or severe temporary harm” . Furthermore, the Saudi Patient Safety Center explains SE as “an adverse event in health care delivery or other services, which either leads to or has the potential to lead to catastrophic outcomes” . In Saudi Arabia, the number of complaints and claims relevant to adverse events against healthcare providers has increased . During the years from 2016 to 2019, there were 727 SEs reported in Saudi Arabia where the top SEs were 38.4% unexpected patient death, 19.4% maternal death, and 11.7% unexpected loss of limb of function . Thus, the reduction of SEs and harm to patients is one of the groundwork of patient safety that needs to be continuously improved. Therefore, the Saudi Patient Safety Center  was established in 2017 as one of Saudi’s National Transformation Vision of 2030 initiatives to improve patient safety in a national level in Saudi Arabia.
There are several actions to be taken in the case of suspected or confirmed SEs at hospital-level, including a reporting system that helps to identify a root cause analysis, followed by a corrective action plan . Although reporting medical errors is mandated in many healthcare systems, in the US, for example, only 10% of the events are reported . According to Anderson and Abrahamson (2017), 15% of the hospitals that have reported errors had a corrective action plan that involved system changes . An observational study conducted by Hamilton et al. (2017) to evaluate the variance reporting systems, found that during six weeks five observed adverse events were not reported by any reporting systems whereas only two adverse events were handwritten reported . A scoping review of patient safety in Saudi hospitals found that there is evidence of some cultural aspects that might negatively influence patient safety such as the tendency to report errors with no harm more than those with harm, punitive response to error, and a need for confidential incident reporting . These findings in agreement with other studies suggested that adverse events require a culture change to minimize the fear of reporting [15, 17]. Therefore, one of the critical processes is assessing areas of weaknesses and strengths in patient safety culture among healthcare organizations, including the reporting culture, to maintain better healthcare outcomes and safer organizations.
Patient safety culture (PSC) is one of the vital elements that is evident to affect the patient safety level within healthcare organizations. A systematic review found that the key gaps in patient safety culture in Saudi Arabia are ineffective leadership, a blame culture, inadequate staffing, and poor communication. On the other hand, they identified the s patient safety culture strength factors which are supportive organizational attitudes to continuous improvement, good teamwork within units, and support from management . Some studies that investigated the impact of PSC on reporting events agreed that positive culture improves patient safety standards in collaborating with the capacity and fearlessness to report errors [18, 19]. For instance, Mardon et al.  hypothesized that higher scores on the PSC survey were associated with lower rates of adverse events. Among the top factors that contributed to underreporting of SEs and lower PSC in Saudi Arabia and worldwide are blame culture, poor leadership, lack of staffing, poor communication, fear of reporting sequel, human and work environment factors, the reporting system used, compliance with policy and procedure, fear of punitive action, and lack of understanding of patient safety events [16, 21,22,23,24,25,26,27]. A survey conducted by the Netherlands Federation of University Medical Centers (2020) to assess the handling and learning from SEs found that 5 out of 8 hospitals reported that the reoccurrence of similar events was caused by culture and communication . Similarly, a study conducted in Saudi Arabia to investigate the most common SEs reported by the hospitals found that policies and procedures, ineffective communication, shortage of staff, and lack of competencies are the common causes . Therefore, overcoming the barriers and developing a non-blaming, non-punitive learning culture may have a significant role in the reporting system and enhance patient safety initiatives .
Despite the challenges of reporting the SEs that face the health systems, monitoring and analyzing these reports significantly contributes to the effectiveness of improving patient safety . A study assessed PSC and included 13 hospitals located in Riyadh city in Saudi Arabia found that underreporting of errors due to the fear of blame culture even when harm occurs can result in threatening patient safety and neglecting valuable information on errors as well as inability to analyze these errors . PSC is a crucial part of organizational culture in which healthcare providers recognize patient safety performance as the highest priority measure to prevent patient harm . Data generated from PSC is multi-dimensional and can be used to explore relationships and correlations among their attributes and linked to patients’ outcomes; however, there is a gap in the literature due to limited studies in this context . More specifically, linking the aggregated PSC data with the occurrence of SEs and their contributory factors might have an impact on identifying cultural factors that can positively or negatively influence patient safety within healthcare systems and processes. A systematic review aimed to identify connections between PSC and patients’ outcomes found that there is evidence of relationships between them, such as the negative correlations between PSC and mortality rates . We hypothesized that hospitals with a more positive PSC have lower numbers of SEs. Furthermore, this study can contribute to providing nationwide hospital-level aggregated PSC and reported-SEs results that can help healthcare leaders and decision-makers to gain insights about areas that need improvements. To our knowledge, limited studies explored the relationships between patient safety culture and sentinel events on a local level and no research has been conducted at the national level in Saudi Arabia.
This study aimed to describe and explore the relationships between the PSC and the sentinel events (number of reported SEs, the categories of contributory factors, and the level of harm) by linking the two data sources during the year 2020 in Saudi hospitals.
This was a descriptive and exploratory study. Ethical approval was obtained by the institutional review board at King Saud Medical City (IRB Project No. E-22–6551).
Study setting and data sources
The study utilized secondary data from two data sources collected at a national level in Saudi Arabia at the Saudi Patient Safety Center, which are the patient saftey culture survey and the sentinel events reports. The hospitals included all healthcare sectors, which are the ministry of health (MOH), government non-MOH, and private.
Dataset 1: The patient safety culture survey
The Hospital Survey on Patient Safety Culture (HSPSC) questionnaire is a tool developed by the Agency for Healthcare Research and Quality (AHRQ)  to evaluate the PSC . The survey is distributed yearly through the Saudi Patient Safety Center targeting all healthcare workers anonymously in Saudi hospitals in both Arabic and English languages . Hospitals were required to register their interest in participating with the Saudi Patient Safety Center by creating an account on the designated electronic survey platform through the authorized point of contact who is an authorized staff at each hospital. The point of contact updated the facility and staff information such as the number of beds, and the number of staff per department. After that, the surveys were distributed electronically to the hospitals by unique links. Surveys were filled in real-time with the ability to visualize the progress by the Saudi Patient Safety Center team, governance sectors, and hospitals. The maximum number of filled surveys was determined based on the total number of staff for each hospital as self-reported by the hospital, where the system did not allow extra surveys beyond the total number of staff. After closing the 8-week cycle of data collection, the hospitals that did not meet the Saudi Patient Safety Center criteria as the following: non-verified registration, non-completed registration (at the end of each cycle), and hospitals with less than 10 completed surveys were excluded.
We utilized the HSPSC survey responses that were collected by the Saudi Patient Safety Center during the period from January 2021 and March 2021. The final dataset included 124,891 responses from 366 hospitals. The average hospital response rate during this cycle was 63.81% (ranging from 2 to 100%). We removed duplicated records and calculated the PSC domains according to the AHRQ guidelines that facilitate comparison between hospitals and the entire database per item, per domain, and per hospital’s domains. The used version in this cycle was version 1 of the HSPSC, which consists of 42 items measuring 12 PSC domains, which are (D1) teamwork within units, (D2) supervisor/manager expectations and actions promoting patient safety, (D3) organizational learning—continuous improvement, (D4) management support for patient safety, (D5) overall perceptions of patient safety, (D6) feedback and communication about error, (D7) communication openness, (D8) frequency of events reported, (D9) teamwork across units, (D10) staffing, (D11) handoffs and transitions, and (D12) nonpunitive response to error. The scoring of the items was a five-point Likert scale of agreement (1 = ‘strongly disagree’ to 5 = ‘strongly agree’) or a scale of frequency (1 = ‘never’ to 5 = ‘always’). Furthermore, two additional PSC measures were included in our study, the patient overall safety grade (POSG) and the positive events reported (PER). For the calculation of the percent positive per hospital for these PSC measures, we counted “Excellent” and “Very Good” as positive responses for “Please give your work area/unit in this hospital an overall grade on patient safety” and counted “1 to 2 event reports”, “3 to 5 event reports”, and “6 to 10 event reports” as positive responses for “In the past 12 months, how many event reports have you filled out and submitted”. In addition, demographic and hospital data were also collected including region, bed capacity, staff position, work area, weekly working hours, and interaction with patients.
Dataset 2: The sentinel events reports
The Saudi Patient Safety Center provides a framework to standardize the root cause analysis process and direct the healthcare facility to improvement. The reporting healthcare facility should complete and submit the root cause analysis and a corrective action plan within 45 days of the SE. The nine categories of contributory factors (CF) (Process Issues, Human Factors, Equipment / Technology, Environmental Factors, Staff Competency and Performance, Manpower Planning Issues, Leadership and Safety Culture, Communication and Information, and Others) were based on the root cause analysis template . Each category repeatedly asks a series of triggering questions and a checklist of sub-CFs until the root systemic causal factors that culminated in the SE are identified as described in the Saudi healthcare sentinel event manual . The Saudi Patient Safety Center received the SE reports from healthcare providers and reviewed them internally according to the Saudi healthcare sentinel events manual criteria , including the root cause analyses that were reported by the hospitals for each event and the corrective action plan. Afterward, all data were manually entered after cleaning and reviewed on an excel sheet. All reports with no personal identifiers from January 2020 to December 2020 were included. The number of reported-SEs was 231 from 103 hospitals. The variables included in this study were event location, who was affected (patient, staff, or organization), the level of harm (death, permanent harm, severe temporary harm, no harm) or event outcome, and the categories of CFs.
Descriptive statistics were performed by using measures of frequency to calculate frequencies and percentages  for both data sources (the PSC and the reported-SEs). All the PSC measures were calculated based on the hospital-level positive percentages and then were aggregated for all variables by calculating their averages. To assemble the final dataset, we merged the two data sources by matching hospitals to assess the relationships between the reported-SEs and PSC measures. The test of independence, F-test for numeric variables, was used to test if variables were dependent on the bed size of the hospitals and we reported the following: mean, standard deviation, F-test, and p-value. In addition to the F-test, the Tukey post-hoc test was used for pairwise comparisons between bed size groups ("50–100 beds", "101–200 beds", "201–300 beds", "301–500 beds", and "501 + beds") among all variables with significant differences. Bivariate analysis using spearman correlation was used to measure the relationships between the following variables: the number of reported-SEs, CFs, level of harm, and the PSC domains and measures. We visualized these correlations using a heatmap for all the variables. Multivariate regression was used to identify statistically significant PSC domain predictors for each of the following dependent variables: the number of sentinel events, percent positive of overall patient safety grade, and percent positive of events reported. Multivariate regression was also performed using a stepwise algorithm bidirectional selection . R , Tableau , SPSS , and Microsoft Excel  were used for data analysis and visualization. The following R functions and packages were used: “vtable” , “TukeyHSD” , “cor” , “corrplot” , “ggcorrplot” , and “stepAIC” . P-value < 0.05 was considered to be significant.
Descriptive summary of the two data sources
Table 1 shows the percentages of reported-SEs based on the CFs and the positive percentages results of the PSC survey for the whole dataset. The highest CFs were “Communication and Information” (63.20%) and “Staff Competency and Performance” (61.04%). The reported-SEs that were categorized in either of these CFs were received from 75.73% of the reporting hospitals (Table 1). “Others” (11.26%) was the lowest CF which includes the unavailability of some policies, procedures, or resources. For the PSC survey (Table 1), the three highest-scored domains within the database were: “Teamwork Within Units” (80.65%), “Organizational learning-continuous improvement” (80.33%), and “Feedback and Communication About Errors” (65.31%). On the other hand, the three lowest-scored domains in the database were: “Communication Openness” (53.43%), “Staffing” (32.10%), and “Nonpunitive Response to Error” (26.19%). The database's average percentage of positive responses across 12 domains was 58.38%.
The total number of SEs reported during 2020 was 231 from 103 hospitals across Saudi Arabia. The highest percentage of SEs (31.60%, n = 73) was reported in Riyadh region followed by Makkah region (22.94%, n = 53). The number of reported-SEs in our dataset was the highest (29%, n = 67) reported from 25 hospitals with a bed size of “301–500 beds”. For the PSC survey, the total number of respondents was 124,891 from 366 hospitals across different regions in Saudi Arabia. The PSC results showed that 22.92% (n = 28,622) of respondents were from hospitals with a bed size of “301–500 beds” (9.56%, n = 35). In addition, hospitals with a bed size of “50–100 beds” were the highest (54.37%, n = 199) with 25,403 (20.34%) respondents. The highest number of respondents were working in the emergency department (8.79%, n = 10,979). The highest number of respondents were registered nurses (34.02%, n = 42,485). Appendix 1 and 2 show a descriptive summary of the reported-SEs and the PSC survey before merging the two datasets.
Linking the patient safety culture and the reported sentinel events
Table 2 shows the PSC measures (average positive events reported, average patient overall safety grade, and average percent positive across 12 PSC domains) linked to the hospitals with reported-SEs. After merging the PSC dataset with the sentinel events dataset, the number of reported-SEs was 195 which occurred in 89 hospitals. The highest number of SEs was found in “301–500 beds” bed size with 60 SEs (30.77%), which were reported from 21 different hospitals (23.6%). For the CFs, “Communication and Information” was the highest reported category (n = 128, 65.64%), followed by “Staff Competency and Performance” (n = 122, 62.56%), then “Process Issues” (n = 121, 62.05%). Among the 195 reported-SEs, 132 (67.69%) of the cases had resulted in death, and 13 (6.67%) of the cases resulted in permanent harm.
Table 3 shows the results of test of independence based on bed size for each of the following: number of reported-SEs, category of CFs, level of harm, and PSC domains. There was a statistical significance difference among hospitals according to bed size for all reported-SEs and CFs, except for “Equipment/ Technology”, “Environmental Factors”, and “Others”. Using post-hoc analysis, we found that the difference in the reported-SEs rates was between “501 + beds” with each of “50–100 beds” (p = 0.0011),“101–200 beds” (p = 0.017), and “201–300 beds” (p = 0.034) as well as between “50–100 beds” with “301–500 beds” (p = 0.048). Furthermore, “Communication and Information” showed a difference between “301–500 beds” with “50–100 beds” (p = 0.017) and with “101–200 beds” (p = 0.025). The “Process Issues” showed that the difference was between “501 + beds” with “50–100 beds” (p = 0.004), “101–200 beds” (p = 0.004), and “201–300 beds” (p = 0.029). The “Human Factors” showed that the difference was between “501 + beds” with “50–100 beds” (p = 0.041) and with “101–200 beds” (p = 0.049). The level of harm showed a statistical significance difference only in “Death” (p = 0.0003). Among hospitals according to bed size and using post-hoc analysis the difference in “Death” was between “501 + beds” with each of “50–100 beds” (p = 0.0007), “101–200 beds” (p = 0.0009), and “201–300 beds” (p = 0.004). As for PSC domains, the results showed a statistical significance difference among hospitals according to bed size in 4 domains. The post-hoc analysis showed that the difference in “Teamwork Within Units” domain was between “301–500 beds” with “50–100 beds” (p = 0.0001) and with “101–200 beds” (p = 0.032). The difference for “Organizational Learning—Continuous Improvement” domain was between “50–100 beds” with “301–500 beds” (p = 0.02). The difference for “Communication Openness” domain was between “50–100 beds” and “301–500 beds” (p = 0.05). Lastly, “Handoffs and Transitions” domain showed a difference between “50–100 beds” and “301–500 beds” (p = 0.03).
The relationship between the patient safety culture and the reported sentinel events
Patient safety culture domains and reported sentinel events
Figure 1 shows the correlation matrix as a heatmap to explore the relationships between the PSC domains and the reported-SEs, CFs, and level of harm. We found negative correlations between PSC domains and reported-SEs with r coefficients ranging from –0.30 to –0.001. Higher positive scores in the PSC domains were associated significantly with lower reported-SEs rates, which are “Teamwork Within Units” (r = -0.30, p = 0.004), “Handoffs and Transitions” (r = -0.29, p = 0.006), “Communication Openness” (r = -0.23, p = 0.03). Overall higher PSC aggregated average percent positive across domains were associated with lower reported-SEs rates (r = − 0.905, p < 0.01). By examining the relationships between reported-SEs and PSC self-reported outcome measures, POSG “overall perception of safety” and PER “positive events reported (at least one event during the last 12 months)” were not significantly related to reported-SEs. The bed size was negatively related to all of the PSC domains except “Frequency of Events Reported” domain with significant correlations between bed size and each of “Teamwork Within Units” (r = -0.40, p < 0.001), “Communication Openness” (r = -0.32, p = 0.002), "Organizational Learning—Continuous Improvement" (r = -0.31, p = 0.003), and “Handoffs and Transitions” (r = -0.24, p = 0.02). Supplementary 1 shows the spearman correlation coefficient and p-values for all of the variables.
Patient safety culture domains and contributory factors
We found 33 significant negative correlations (Fig. 1) between CFs of the reported-SEs and PSC measure. “Staff Competency and Performance”, “Human Factors”, and “Communication and Information”, showed significant negative associations with average percent positive across PSC domains (r = -0.26, -0.24, and -0.23, respectively). “Staff Competency and Performance” was correlated negatively with the following 6 PSC domains from the highest to the lowest: “Handoffs and Transitions” (r = -0.33, p = 0.002), “Teamwork Across Units” (r = -0.29, p = 0.006), “Teamwork Within Units” (r = -0.27, p = 0.010), “Overall Perceptions of Patient Safety” (r = -0.25 p = 0.018), “Organizational Learning—Continuous Improvement” (r = -0.22, p = 0.037), and "Feedback and Communication About Error" (r = -0.22, p = 0.041). Furthermore, "Human Factors" was also correlated negatively with 4 PSC domains, which were "Teamwork Within Units" (r = -0.33, p = 0.001), "Overall Perceptions of Patient Safety" (r = -0.29, p = 0.007), "Handoffs and Transitions" (r = -0.28, p = 0.007), and "Communication Openness" (r = -0.24, p = 0.023). “Environmental Factors” were negatively associated with 8 measures of the PSC, notably the highest and most significant correlations among the 8 measures were "Teamwork Across Units" (r = -0.30, p = 0.004), "Management Support for Patient Safety"(r = -0.30, p = 0.005), "Patient Overall Safety Grade" (r = -0.29, p = 0.007), and "Organizational Learning—Continuous Improvement" (r = -0.28, p = 0.008). Remarkedly, the “Handoffs and Transitions” correlates negatively on a significant level with all the CFs apart from the “Manpower Planning Issues”. The bed size was positively correlated with five CFs, which were “Process Issues”, “Leadership and Safety Culture”, “Staff Competency and Performance”, “Human Factors”, and “Communication and Information”.
Patient safety culture domains and level of harm
The results (Fig. 1) showed that “Death” was negatively correlated with the following PSC domains: “Teamwork Within Units” (r = -0.28, p = 0.008), “Organizational Learning—Continuous Improvement” (r = -0.24, p = 0.02), “Feedback and Communication About Error” (r = -0.23, p = 0.03), “Communication Openness” (r = -0.25, p = 0.02), “Teamwork Across Units” (r = -0.26, p = 0.02), “Handoffs and Transitions” (r = -0.31, p = 0.003), and average percent positive across domains (r = -0.27, p = 0.01). For “Permanent Harm”, the results showed that it was negatively correlated with the following PSC domains: “Teamwork Within Units” (r = -0.27, p = 0.009), “Overall Perceptions of Patient Safety” (r = -0.23, p = 0.03), “Handoffs and Transitions” (r = -0.29, p = 0.006), “Nonpunitive Response to Error” (r = -0.23, p = 0.03), and (r = -0.27, p = 0.0.009). The bed size was positively related to the reported-SEs (r = 0.44, p < 0.001) and to “Death”(r = 0.37,p < 0.001).
The influence of patient safety domains on sentinel events, patient overall safety grade (POSG), and positive events reported (PER)
Multivariate regression (Table 4) was calculated to identify the influence of the 12 PSC domains on the positive percent of the number of reported-SEs (SE model), the patient overall safety grade (POSG model), and the positive events reported i.e. at least one event reported during the last 12 months (PER model). For SE Model, the 12 PSC domains explain a significant amount of variance in the number of reported-SEs which was 28.21% (F (12, 76) = 2.49, p = 0.008). “Handoffs and Transitions” and “Nonpunitive Response to Error” domains were statistically significant predictors of the number of SEs. “Handoffs and Transitions” domain had a greater beta with a significant negative influence on the SE (β = − 0.672, p = 0.012), while “Nonpunitive Response to Error” domain positively predicted the SE (β = 0.458, p = 0.021). Five PSC domains accounted for 25.38% of the variance (F (5, 83) = 5.65, p < 0.001) in the final SE model using stepwise approach. The significant PSC predictors of the SEs were similar to the multivariate model with one more significant domain which is “Teamwork Within Units”. For POSG model, we found that the PSC domains explain a significant amount of the variance in the positive percent of the overall safety grade as a whole was 58.45% (F (12, 76) = 8.911, p < 0.001). The analysis showed that “Overall Perceptions of Patient Safety” and “Nonpunitive Response to Error” made a statistically significant contribution to the prediction of patient overall safety grades. “Overall Perceptions of Patient Safety” recorded a higher beta value than “Nonpunitive Response to Error”; however, “Overall Perceptions of Patient Safety” positively contributed with (β = 0.648, p = 0.001), and “Nonpunitive Response to Error” had a significant negative influence on the overall safety grade (β = − 0.375, p = 0.013). The final POSG model using stepwise approach showed a variance of 57.65% (F (7, 81) = 15.75, p < 0.001) accounting for 7 PSC domains. In addition to the two significant domains that appeared in the multivariate regression, “Staffing” domain was also significant in the stepwise regression model. For the PER model, we found that the 12 PSC domains explain a significant amount of the variance in the percent positive events reported as a whole was 36.91% (F (12, 76) = 3.705, p < 0.001). There were no statistically significant domains in this model. The final PER model showed a variance of 33.01% (F (5, 83) = 8.18, p < 0.001). Unlike multivariate regression, the stepwise regression was influenced by 5 PSC domains where two of which were statistically significant predictors which are “Organizational Learning—Continuous Improvement” and “Frequency of Events Reported” (see Table 4).
This study investigated the relationships between PSC and SEs utilizing two data sources collected on a large scale in Saudi Arabia, which are PSC survey and SEs reports. The overall percentage of positive response of PSC (58.38%) is acceptable when compared to the overall percentage (65%) of the United States in 2018 . Our study identified PSC domains as areas of strength (positive areas) and areas of weakness (negative areas) in Saudi hospitals that are consistent with the other studies [9, 49,50,51]. The top areas of strengths in PSC domains among 366 hospitals in Saudi Arabia were “teamwork within units” and “organizational learning". The top areas of weaknesses in PSC domains were “nonpunitive response to error”, “staffing”, and “communication openness”, which may be also indicative of risky factors affecting the occurrence of SEs. On the other hand, there was a total of 231 SEs reported from 103 hospitals in Saudi Arabia. Two factors mostly contributed to these reported-SEs which are “communication and information” followed by “staff competency and performance”, consistent with previous studies in Saudi and internationally [10, 16, 52, 53]. As our objective was to investigate the relationships between the PSC and reported-SEs, merging the two datasets resulted in 89 hospitals with 195 reported-SEs that were matched by hospitals to their corresponding PSC measures. The correlation results showed a significant increase in the rates of reported-SEs among the hospitals with larger bed size. Hospitals with larger bed size might be at increased risk of more adverse levels of harm.
When we explored the relationships between PSC and the numbers of reported-SEs, our results indicated that more positive PSC is associated with lower rates of reported-SEs which was consistent with previous studies [20, 54, 55]; with 3 out of the 12 PSC domains were significantly related to lower rates of reported-SEs. These results suggested that improving positive culture in “teamwork within units”, “handoffs and transitions”, and “communication openness” were significantly associated with lower rates of reported-SEs that are consistent with Najjar et al. findings on adverse events . These three PSC domains showed also lower positive culture among hospitals with bed size “301–500 beds” than in hospitals with lower bed size. Similarly, this pattern was found also with death as an outcome; expectingly, the rate gradually increased in the hospitals with larger bed size. Therefore, it is important to create a safe environment for healthcare workers to communicate openly and report mistakes without the fear of blame or punishment. Our regression analyses showed similar findings for the association between SEs and “handoffs and transitions” and “teamwork within units” domains. However, it also showed that more positive culture around “nonpunitive response to error” was influenced by higher numbers of reported-SEs. The “nonpunitive response to error” domain was one of the domains that gained the most attention as a crucial topic in research locally among Saudi Arabian hospitals and internationally [9, 16, 51, 56]. This is also evident in our national-level survey results as it was one of the lowest-scored domains among the PSC domains among 366 hospitals in Saudi Arabia. On the other hand, the association of “nonpunitive response to error” with higher numbers of reported SEs might indicate a positive culture of reporting without a fear of blame indicating a safer organization, which is a topic of debate [57,58,59]. This is evident in the influence of “frequency of events reported” domain on the positive events reported (PER) model as per our stepwise regression analysis. Therefore, it is suggested that caution should be taken when interpreting the results of reported incidents, such as sentinel events, and consideration of supporting data and contextual analysis is critical . The overall perception of safety and the events reported (at least one event during the last 12 months) were not significantly related to a lower rate of reported-SEs.
The contributory factors explain the root causes of the reported-SEs. We found that more positive culture of "handoffs and transitions" was associated with lower rates of reported-SEs explained by 8 contributory factors, including "staff competency and performance", "process issues", "human factors", and "communication and information". This might indicate that improving handoffs and transitions among staff and healthcare professionals help in decreasing the incidence of SEs. Communication is one of the most common issues that can be triggered during and after the handoff of care. For instance, verbal communication can carry more risks during handoffs when compared to written communication . The “communication and information” factors justify subfactors such as ineffective handover communication, lack of information, failure to seek support, and misunderstanding of the information. Our findings are also consistent with another study regarding communication during patient handoffs  which found that the language either the usage of the English language, which is not the native language, or the usage of medical terms negatively impacts communication during the handoffs. Moreover, the channel that is used during communication such as facial expression, body language, and eye contact may affect the interpretation of exchanging information [61, 62]. Furthermore, senior staff might be busy with leadership tasks, which can affect the performance and the communication of information. Additionally, the environment where this information is communicated among staff can have an impact on the quality and accuracy of the information, such as a noisy environment .
Among the top contributory factors in the number of significant correlations with PSC measures were “staff competency and performance” (e.g., lack of knowledge/skills/competence and inadequate supervision) and "environmental factors" (e.g., poor or inappropriate area design and noise), which indicate that these factors might also be potential areas to be improved among hospitals for a better PSC and lower reported-SEs rates. In addition to its correlation with "handoffs and transitions", “staff competency and performance” have a negative association with the domains that are linked with the teamwork aspects (“teamwork within units” and “teamwork across units”) and error prevention and positive change aspects (“organizational learning”, “overall perceptions of patient safety”, and “feedback and communication about error”. "Environmental factors" was the only contributory factor that had a negative association with the "patient overall safety grade" measure of PSC. Hayashi et al.  examined the relationship between PSC and the working environment and suggested that managing the work environment among healthcare workers can improve PSC. Furthermore, they found that high number of night shifts might increase the number of adverse events. Our results are in agreement with previous findings that the following factors are critical towards a more positive PSC: leadership, teamwork, evidence-based, communication, learning, just, and patient-centered [64, 65].
Such identified PSC domains and sentinel events relationships in this study might be considered risky or negative domains require further actions including mitigation actions and interventions to minimize or eliminate their negative impact on patient outcomes. Examples of interventions that hospitals can implement to improve culture and minimize unpredictable events are implementing effective reporting systems to improve “nonpunitive response to error”, appointing a safety champion for every unit to improve and conduct satisfaction surveys “staffing”, using safety briefings to improve “communication openness”, implementing Situation-Background-Assessment-Recommendation (SBAR) technique to improve “teamwork within units”, and relaying safety reports at shift change to improve “handoffs and transitions” . Other examples of strategies with leadership responsibility to improve response to error, such as “Just culture”, staff supporting programs, and “good catches” . “Just culture”, for example, can address two of the weakest domains which are “nonpunitive response to error” and “communication openness”. To improve communication during handoffs, the following strategies are suggested: standardization and simplification, avoiding interruptions during handoffs, limiting the use of intermediaries, using a common communication style, implementing a readback or hearback communication process, and keeping communication patient-focused. Staff and healthcare workers must feel safe during communication to speak up and actively participate during the handoffs . Furthermore, the implementation of the TeamSTEPPS teamwork concept on patient safety culture among hospitals might have an impact in improving some dimensions, including “teamwork within units” and “communication openness” [54, 68].
Several areas of patient safety culture and underreporting that have been identified as weaknesses still exist among hospitals in Saudi Arabia. First, we would like to emphasize that hospital management support is critical and showed evidence of improved patient safety culture and reporting culture . Second, even with the most advanced analytical methods and tools, addressing the underreporting problems requires a culture that engages the acknowledgment of errors . Learning from the reported-SEs is an essential phase to improve the patient safety culture in the hospital and improve prioritizing of the recommendations . 7% of the hospitals reported the process issues including stages of the task not being designed or lack of prioritization of guidelines were sub-contributors to the events; another study concluded that prioritizing recommendations with subjective criteria from the reported-SEs is an essential phase of the learning process [28, 69]. Therefore, assessing the patient safety culture and its connection to adverse events and sentinel events is a continuous learning process. Third, we believe that adopting technologies as a part of the clinical workflows and reporting process might help in providing structured information resources that can assist in more standardized reporting and better learning processes. For instance, electronic health records (EHR) nowadays can enhance the standardization of handoff communication when used effectively with greater efficiency, accountability, timeliness of communication, and data accuracy and completeness . In fact, it is highly recommended for hospitals to move to data-driven approaches with transparent reporting of SEs  that can be facilitated by technologies. Fourth, we also would like to highlight the importance of government initiatives to improve patient safety through data-driven approaches, such as those established by the Saudi Patient Safety Center , which has implemented electronic-based tools to facilitate reporting adverse and sentinel events as well as participating in the patient safety culture initiatives. Fifth, our results indicated that “human factors” was among the top contributory factors, it is important to give attention to human factors during communication, such as stress and rushing to complete a task. Developing accurate and efficient healthcare systems and processes is necessary to ensure that these processes are carried out safely during situations, such as handoffs .
Given how patient safety culture is new in Saudi and very few studies have been published on a large scale in this area, we believe our research currently represents the first study with this context of linking patient safety culture to sentinel events and its contributory factors. One of the strengths of this study is that the study was conducted on a national level among participating hospitals in Saudi Arabia when compared to previous studies [9, 51]. Additionally, we investigated the contributory factors of the reported-SEs among different healthcare sectors (MOH, government non-MOH, and private hospitals) in Saudi Arabia. A limitation of this study is that the number of reported-SEs was relatively small in comparison to the patient safety culture survey data and merging the two datasets led to a decrease in the number of analyzed hospitals from 366 to 89, which might affect the generalizability of the results on other hospitals and other countries. This might be because the occurrence of reported-SEs is much lower than the occurrence of other adverse events in general. Moreover, data was collected nationally at the hospital level where there might be additional data that might not have been shared. Underreporting is a known issue that we hope in this study we encourage hospitals to report. This study was performed on a one-year duration, future studies can focus on change over the years in both safety culture and the rates of reported-SEs. Future studies can focus on implementing interventions and measuring their impact on PSC and the occurrence of sentinel events. Since this study focused on quantitative approaches, we suggest that future studies should focus also on qualitative approaches to analyze the relationships between patient safety culture and sentinel events. Moreover, future studies can focus on more focused contexts, such as other adverse events or specific contributory factors, and can utilize predictive approaches and machine learning to predict patient safety outcomes.
At a national level in Saudi Arabia, there were limited efforts carried out to measure, unify, analyze, and generate aggregate reports and analytics that addressed patient safety culture domains and sentinel events. Communication is the most highlighted negative domain and has a negative association with the reported sentinel events. To minimize the fear of sentinel events reporting and to improve overall patient safety in Saudi Arabia a culture change is needed by promoting a blame-free culture and improving teamwork, handoffs, and communication openness. Furthermore, there was evidence that a more positive patient safety culture was associated with lower numbers of sentinel events. Lastly, we identified evidence-based areas of strengths and weakness in patient safety culture and their relationships to the contributory factors of the sentinel events that can facilitate implementing future interventions, encourage data-driven approaches to patient safety, and require attention by health organizations in Saudi Arabia and worldwide. We hope that the results of this study can help leaders and decision-makers to prioritize the efforts of improving patient safety culture among health professionals and within healthcare organizations.
Availability of data and materials
Data that support the findings of this study are available from the Saudi Patient Safety Center (SPSC) and the authors upon request.
Agency for Healthcare Research and Quality
Hospital Survey on Patient Safety Culture
Ministry of Health
Positive events reported
Patient overall safety grade
Patient safety culture
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This work was supported by Saudi Patient Safety Center (SPSC). However, this study does not represent any official document from the SPSC, and the contents are solely the responsibility of the authors.
Ethics approval and consent to participate
Ethical approval was obtained by the institutional review board at King Saud Medical City (IRB Project No. E-22–6551). We confirm that all methods were carried out in accordance with relevant guidelines and regulations. We confirm that informed consent was obtained from all subjects during the main data collection of the patient safety culture survey by the Saudi Patient Safety Center (SPSC). All data used in this study are aggregated secondary data with no personal identifying information. The confidentiality of data was maintained anonymously.
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Additional file 1:
Appendix 1. The percentage of reported sentinel events (SEs) and hospitals reported-SEs during 2020.
Additional file 2: Appendix 2.
Hospital Survey on Patient Safety Culture (HSPSC) measures (descriptive calculations).
Additional file 3: Supplementary 1.
The spearman correlation coefficient and p-values for all of the variables.
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Binkheder, S., Alaska, Y.A., Albaharnah, A. et al. The relationships between patient safety culture and sentinel events among hospitals in Saudi Arabia: a national descriptive study. BMC Health Serv Res 23, 270 (2023). https://doi.org/10.1186/s12913-023-09205-0
- Patient safety culture
- Sentinel events
- Adverse events
- Descriptive study
- Correlation analysis
- Saudi Arabia