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Intention to initiate antiretroviral therapy (ART) among people living with HIV in China under the scaling-up of ART: the role of healthcare workers’ recommendations

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Abstract

Background

The early initiation of antiretroviral therapy (ART) for people living with HIV (PLWH) benefits both individuals and societies. However, little is known about the intention to initiate ART among PLWH in China in the context of a scaling-up of treatment or how the recommendations of healthcare workers affect this intention.

Methods

A total of 451 ART-naïve PLWH were recruited from communities in Guangzhou, China for this study. Data were collected by trained physicians via face-to-face interviews. Logistic regression models were fitted for the data analyses.

Results

Of the participants, 93.8% were male, 72.7% were infected via homosexual behaviour and 68.5% reported an intention to initiate ART. In the latter category, 77.8, 41.9 and 20.0% of respondents received strong recommendations to initiate ART from healthcare workers at the Centres for Disease Control and Prevention (CDC), community healthcare centres and non-governmental organisations (NGOs), respectively. After adjusting for potential confounders, depression, anxiety and strong recommendations from healthcare workers at the CDC and NGOs correlated significantly with ART intention. In the adjusted final hierarchical logistic regression model, the duration of infection [multivariate odds ratio (ORm) = 0.30, p < 0.001], route of HIV infection (ORm = 0.18, p < 0.01), infection status of the current spouse/regular sex partner (ORm = 0.21–0.23, p < 0.01), anxiety (ORm = 2.44–2.65, p < 0.05) and strong recommendations from CDC physicians (ORm = 3.67, p < 0.01) or NGOs workers (ORm = 3.67, p < 0.01) were independently associated with the ART intention, whereas a recommendation from a community healthcare centre physician was not.

Conclusions

In Guangzhou, the prevalence of ART intention was below the 90–90-90 targets. Further studies aimed at an in-depth understanding and encouragement of health care workers’ perceptions regarding early ART are warranted as a means of scaling up new ART strategies.

Background

Human immunodeficiency virus (HIV) remains a major public health threat. By the end of 2017, 758,610 people in China were reportedly living with HIV and 134,512 new HIV infections had occurred during that year [1]. Early antiretroviral therapy (ART) can effectively suppress the replication of the HIV virus, delay the progression of disease, reduce HIV/AIDS-related mortality and decrease the risk of HIV transmission [2,3,4,5,6,7]. In 2015, increasing evidence led the World Health Organisation (WHO) to recommend the initiation of ART in all people living with HIV (PLWH), irrespective of their CD4 cell counts [8]. Implementation of the new guideline will provide significant contribution to the achievement of the UNAIDS “90–90-90” target: 90% of all PLWH will know their HIV status, 90% of all people with HIV diagnosed will receive sustained ART and 90% of all people receiving ART will have viral suppression by 2020 [9]. Achievement of these 90–90-90 targets has the potential to end the AIDS epidemic by 2030, and accelerating ART initiation is crucial to achieve the second 90% target.

In China, the National Free Antiretroviral Treatment Program (NFATP) was started in 2003 [10]. Following updated WHO ART guidelines, China revised the ART policy and further expanded free ART services [11, 12]. From 2008, PLWH with CD4 cell counts below 350 became eligible for treatment; since 2014, the treatment threshold was CD4 cell counts below 500 [13]; and recently since 2016, China updated its ART guideline according to the new WHO strategy and has provided free ART for all PLWH [14].

Despite the benefits of ART, various countries have reported unsatisfactory levels of coverage [9]. The ART coverage rates worldwide and in China were 53 and 67%, respectively, in 2015 [9, 15]. Previous research identified various factors associated with ART initiation, including those related to socio-demographic status (e.g., age, gender, marital status) [16,17,18] and HIV status (e.g., duration of HIV infection, route of HIV infection, CD4 count) [18,19,20,21]. Although the literature also suggests that psycho-social factors such as depression, anxiety and social support also affected ART initiation, no consensus has been reached. For example, Tao et al. reported positive associations of depression and anxiety with earlier ART initiation among PLWH in China [22], whereas studies conducted elsewhere reported that mental health problems, stigma and a lack of social support led to delays in ART initiation [23]. Furthermore, most recent research was conducted before new ART strategies were implemented. Therefore, a few unaddressed issues remain. For example, it remains uncertain whether PLWH with a wider range of CD4 cell counts would want to initiate treatment in the context of a scaling up of ART. Furthermore, the effects of various factors on the treatment intentions of PLWH are unknown. These questions have not been well studied in China or other countries, despite their critical importance to the practical implementation of new ART guidelines.

Research has shown that physicians’ recommendations may serve as a crucial stimulus for ART initiation [24,25,26]. One European study of men who have sex with men reported that a lack of recommendation from a physician was cited as the most common reason for a lack of ART initiation [27]. Furthermore, a Chinese study identified a physician’s recommendation as the main reason underlying the decision to initiate ART among PLWH with high CD4 cell counts [25]. Nonetheless, the above findings were based on qualitative studies, and the influences of healthcare workers’ recommendations on ART initiation among PLWHs have not been investigated quantitatively.

In China, PLWH with confirmed HIV infection are followed by district-level Centres for Disease Control and Prevention (CDC) or Community Healthcare Centres (CHCs; sub-district level) according to the population size of local HIV/AIDS, according to the National Practical Guideline for the Follow-up and Management of PLWH. Furthermore, ART-related information is delivered to PLWH by healthcare workers at CDC or CHCs [28]. In practice, non-governmental organisations (NGOs) which provide services to HIV-related populations may also be involved in the process of communication with PLWH [29]. As new ART strategies have only been implemented recently, the firmness of ART-related recommendations provided to PLWH may vary across healthcare workers from different organisations. However, no previous study has quantitatively compared the effects of recommendations from healthcare workers affiliated with different organisations on intentions toward ART in China.

This study aimed to explore the intentions regarding ART initiation among PLWH in Guangzhou, China and to identify the effects of various factors, especially healthcare workers’ recommendations, on these intentions after the implementation of the new ART guideline. As intention and behaviour are strongly correlated [30, 31], the findings of this study could contribute to a better understanding of the ART initiation behaviours of PLWH and provide evidence to support a better implementation of the scaling-up of ART in China.

Methods

Study design and participants

This cross-sectional study was conducted in Guangzhou, the capital city of Guangdong Province. By the end of 2015, 7311 HIV cases had been reported in Guangzhou (unpublished statistical data, 2015) and 5056 PLWH (69.2%) were receiving ART (Guangzhou Yearbook, 2016). Six out of 11 districts in Guangzhou with relatively high HIV prevalence rates were purposively selected for this study. The study population comprised ART-naïve PLWH who were aged ≥18 years, clinically eligible for ART and could provide informed consent. Participants who did not finish the interview were excluded. All potential participants were recruited from the local CDC and CHCs after attending CD4 count testing sessions between June 2016 and April 2017. Participants who provided informed consent then participated in face-to-face interviews via structured questionnaires, which were administered by trained physicians in private settings. Identifiable information such as name and ID was not recorded to ensure the anonymity of interview. A total of 466 eligible participants were recruited, of whom 451 (96.8%) completed the interview. According to the recommendation on sample size of multivariate analysis models, the minimum sample size should be 10 to 20 times the number of independent variables included in the model [32, 33]. Our sample size met the need of analysis (no more than 20 independent variables in one model). Ethical approval for the study was obtained from the School of Public Health, Sun Yat-sen University.

Measurements

Background information for the study included socio-demographic (gender, age, ethnicity, education level, current marital status, health insurance status, origin) and HIV-related characteristics (i.e., duration of HIV infection, route of HIV infection, infection status of current spouse/regular sex partner, most recent CD4 counts, history of AIDS-related clinical symptoms).

Characteristics of the psycho-social status, including depression, anxiety, stigma and social support, were also measured. Probable depression was assessed using the Patient Health Questionnaire (PHQ-9) [34,35,36,37], and scores of 5, 10, 15 and 20 were used as cut-off points for mild, moderate, moderately severe and severe depression, respectively [34]. In this study, the Cronbach’s alpha value of the PHQ-9 was 0.909, and participants were grouped into 3 depressive symptom categories: normal (score 0–4), mild (5–9) and moderate-severe (≥10) [37]. The Generalised Anxiety Disorder 7 (GAD-7) scale was used to measure current anxiety [38, 39]. In this study, the Cronbach’s alpha value for the GAD-7 was 0.946. We categorised participants as exhibiting normal (score 0–4), mild (5–9), and moderate-severe (≥10) anxiety symptoms [38]. Self-perceived stigma was assessed using the 9-item Chinese Courtesy Stigma Scales (CCSSs) [40], which yield scores ranging from 5 to 45. A higher score indicates a higher level of self-perceived stigma (Cronbach’s alpha = 0.90 in this study). Finally, the 12-item Perceived Social Support Scale (PSSS) has been used in previous studies targeting PLWH [41]. This scale yields possible scores ranging from 12 to 84, with higher scores indicating a higher level of perceived social support. In this study, the Cronbach’s alpha of the PSSS was 0.919.

Recommendations to initiate ART from healthcare workers at CHCs, the CDC and NGOs were documented. We asked the participants whether each type of healthcare worker had recommended the initiation of ART. The response options included ‘no recommendation’, ‘little recommendation’, ‘some recommendation’, ‘strong recommendation’ and ‘not applicable (i.e., have not previously had contact with this type of healthcare worker)’. For the data analysis, these responses were combined into 3 groups: ‘weak recommendation’ (no/little recommendation), ‘strong recommendation’ (some/strong recommendation) and ‘not applicable’.

One statement (‘When will you initiate ART?’) was used to assess the dependent variable (the intention to initiate ART). The response options included ‘right now’, ‘only when my CD4 counts drop to a certain level’, ‘not ready for ART now’, ‘have never thought about it (ART)’ and ‘other’. A response of ‘right now’ was considered to indicate the intention to initiate ART.

Data analysis

Univariate logistic regression models were fitted to assess the associations between the studied background variables and ART intention. Variables with a p value < 0.1 were included as candidates in the multivariate stepwise logistic regression models [42] (Table 2). Both psycho-social status variables and recommendations from different types of healthcare workers were set as key independent variables, and multivariate analyses adjusted for background variables identified as significant in the multivariate analysis were performed (Table 3). Hierarchical logistic regression models were fitted to examine the independent effects of psycho-social status variables and recommendations from healthcare workers on ART intentions (Table 4). Initially, background variables were selected (stepwise) using Model 1. Next, Model 2 was constructed by the stepwise selection of a block of psycho-social variables for addition to Model 1 (which was forced to stay in the model). Finally, Model 3 was constructed similarly using the variable of recommendations from healthcare workers. All analyses were performed using SPSS for Windows, version 22.0 (SPSS, Chicago, IL, USA). A p value < 0.05 was considered statistically significant.

Results

Background characteristics

Table 1 lists the profiles of all participants. Most participants were male (93.8%) and of Han ethnicity (93.6%). The average age was 32.91 years [standard deviation (SD) = 10.40 years], and 64.3% of participants were younger than 35 years. Nearly 40.0% of participants had attained a university-level or higher education and 59.9% were single. Most (64.5%) had health insurance, and 26.1% were local residents of Guangzhou. More than half (52.5%) of the participants were newly diagnosed as HIV-positive within 1 month, 72.7% were infected via homosexual behaviour and 11.5% reported that their current spouse or regular sex partners were HIV-positive. Furthermore, 53.9% of participants had a most recent CD4 cell count of < 350 and 18.6% had AIDS-related clinical symptoms.

Table 1 Profiles of all participants (n = 451)

Psycho-social status and healthcare workers’ recommendations to initiate ART

The analysis of psycho-social factors revealed that 30.8% of participants had moderate-severe depression, while 17.7% had moderate-severe anxiety (Table 1). The mean perceived stigma and social support scores were 31.56 (SD = 6.81) and 57.18 (SD = 14.16), respectively. Overall, 398 participants (88.2%) had received a strong recommendation to initiate ART from a healthcare worker of any type, and 41.9, 77.8 and 20.0% had received strong recommendations to initiate ART from physicians at CHCs, physicians at the CDC and healthcare workers at NGOs, respectively.

Intention to initiate ART and associated background factors

Overall, 309 participants (68.5%) reported an intention to initiate ART ‘right now’. In a multivariate analysis (Table 2), participants with a longer duration of HIV infection [multivariate OR (ORm) = 0.19–0.49, p < 0.05), those infected via a non-sexual route (e.g., injected drug use; ORm = 0.16, p < 0.01), those with an HIV-positive spouse/regular sex partner or who lacked a regular partner (ORm = 0.31 and 0.32, respectively, p < 0.05) and those with a higher recent CD4 count (ORm = 0.58, p < 0.05) were less likely than others to express an intention to initiate ART.

Table 2 Associations between background factors and ART intention

Associations between psycho-social factors, healthcare workers’ recommendations and ART intention

After adjusting for significant background variables, participants with moderate-severe depression (adjusted OR [ORa] = 2.85, p < 0.001) or mild or moderate-severe anxiety (ORa = 2.50 and 2.29, respectively, p < 0.05) were more likely to express an intention to initiate ART (Table 3). Regarding recommendation-related variables, participants who received strong recommendations from healthcare workers at the CDC (ORa = 4.77, p < 0.001) or NGOs (ORa = 4.89, p < 0.001) were more likely to initiate ART, compared to those who received weak recommendations.

Table 3 Associations between psycho-social factors, healthcare workers’ recommendations and ART intention

Hierarchical logistic regression analyses

The results of hierarchical logistic regression analyses are reported in Table 4. In the final model, participants with a longer duration of infection (ORm = 0.30, p < 0.001), those infected through a non-sexual route (ORm = 0.18, p < 0.01) and those with an HIV-positive spouse/regular sex partner (ORm = 0.21, p < 0.01) were less likely than others to express an intention to initiate ART. The reverse was true for participants with mild or moderate-severe anxiety (ORm = 2.65 and 2.44, respectively, p < 0.05). In the final analysis, strong recommendations from CDC physicians (ORm = 3.67, p < 0.01) and NGO workers (ORm = 3.67, p < 0.01) were independently associated with an intention to initiate ART.

Table 4 Odds ratios of hierarchical models of ART intention

Discussion

In this study, the observed prevalence of ART intention, 68.5%, was similar to the rates reported in China (62.7–65.2%) [25, 43] and other countries, such as South Africa (78.4%), Thailand (78.8%) and Kenya (60.2%) [44,45,46]. Although the implementation of new ART strategies has been translated into increased treatment coverage, a gap remains between the current treatment intentions and 90–90-90 targets [47]. Our study identified a positive association between strong recommendations from CDC physicians and NGO workers and the intention to initiate ART. These findings may inform future interventions intended to promote ART intention and uptake behaviours among PLWH.

Healthcare workers play a crucial role in HIV treatment promotion and are considered a main source of ART-related information for PLWH [24, 25, 48]. In this study, however, we found that recommendations from CDC physicians, but not from CHC physicians, facilitated ART intentions. Furthermore, our results showed a lower likelihood of ART intention among participants who were followed by CHC physicians. This relationship was demonstrated by hierarchical models which demonstrated that the recommendations from CHC physicians were non-significant when CDC physicians were included as a variable.

Both CHCs and CDC physicians conduct follow-ups of PLWH. Possibly, the latter would have a stronger influence than the former on the ART decisions of PLWH. In practice, the responsibilities of CHCs physicians in community health-related services are more comprehensive (e.g., health education, both communicable and noncommunicable disease prevention), and these professionals are relatively less well-trained in the provision of HIV-related services, compared to CDC physicians who usually play a more focused and sometimes exclusive role in HIV/AIDS prevention and control [49,50,51]. The literature supports the view that for CHCs physicians, a heavy workload and lack of training could lead to unfamiliarity with the new guidelines, improper perceptions of the benefits of early ART and too little time to communicate sufficiently with PLWH [24, 51,52,53]. However, CHCs workers are directly responsible for the follow-up and management of ART-naïve PLWH in some areas of China. This warrants the training of CHCs physicians and innovations in HIV case management programs in community settings.

We additionally found that recommendations from NGOs workers were positively associated with ART initiation. The unique characteristics of NGOs have enabled a significant and supportive role in the expansion of HIV services [29]. Specifically, NGOs act as a bridge between healthcare workers and PLWH and are thus able to spread correct knowledge to PLWH, influence perceptions about early ART initiation and thereby accelerate treatment uptake. In this study, more than half (57.6%) of the participants had not had previous contact with NGOs, suggesting a potentially greater role for these organisations in ART promotion in China.

In our study, PLWH with current depression/anxiety were more willing to initiate ART, and anxiety was independently associated with ART intention. These findings differed from our expectations and are inconsistent with previous studies reporting that mental health problems could delay ART initiation [54, 55]. However, our findings are consistent with recent studies that demonstrated increased ART uptake among PLWH with depression or anxiety [22, 56]. Likely, these depressed and/or anxious PLWH were more concerned about their health status and were more likely to seek health services [22]. Additionally, studies have reported that early ART initiation could help to ease the mental health symptoms of PLWH [56, 57]. These results suggest that early ART could be promoted successfully among PLWH with symptoms of depression/anxiety [56].

Our study results also indicated negative associations of the duration of HIV infection and relationships with HIV-infected sex partners with the ART intention. Our finding was consistent with previous reports that people with a longer duration of HIV infection tended to be healthier, with a higher CD4 cell count and characteristics that did not meet earlier ART criteria. Such patients may not perceive a need for treatment and worry about side effects, drug resistance and lifestyle inconvenience and would thus defer the initiation of ART until their disease has progressed to a more serious condition [24, 25, 53]. PLWH whose sex partners were also HIV-positive might also be less motivated to initiate ART, compared to those who wish to protect their HIV-negative partners [58]. Future health programs intended to promote ART should focus on these PLWH.

This study had some limitations. First, we only investigated PLWH in one city, which restricts the generalisation of our findings across all PLWH in China. Second, the study outcome was behavioural intention rather than actual ART initiation behaviour. Despite a close relationship, intention and behaviour remain separate, and the consistency of this relationship may be influenced by additional factors. Third, this was a cross-sectional study. Therefore, the results could not establish a causal relationship between the independent variables and the outcome. Finally, as data were self-reported, there would be recall bias; and because of social desirability, the prevalence of ART intention might be over-estimated.

Conclusions

The Joint United Nations Programme on HIV and AIDS has set an ambitious goal of ending the AIDS epidemic by 2030 through the 90–90-90 strategy [47]. Our findings indicate that a significant number of PLWH were unwilling to initiate ART immediately under the scaling-up strategies. In the future, training and coaching programmes for healthcare workers that focus on PLWH with certain characteristics (e.g., a longer duration of infection) are greatly warranted.

Abbreviations

AIDS:

Acquired immune deficiency syndrome

ART:

Antiretroviral therapy

CDC:

Centres for Disease Control and Prevention

CHCs:

Community healthcare centres

HIV:

Human immunodeficiency virus

N.S.:

Non-significant in the multivariate analysis

NA:

Not applicable

NGOs:

Non-governmental organisations

ORa :

adjusted odds ratio

ORm :

multivariate odds ratio

PLWH:

People living with HIV

SD:

standard deviation

WHO:

the World Health Organisation

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Acknowledgements

The authors would like to thank all participants included in the study and the medical staff of the Centres for Disease Control and Prevention and Community Healthcare Centres that supported data collection.

Funding

This work was supported by National Natural Science Foundation of China (Grant No. 71774178); Science and Technology Planning Project of Guangdong (Grant No. 2017A020212006); the Guangzhou Science and Technology Project (Grant No. 201607010368); and Community-based integrated interventions for the prevention and control of AIDS, hepatitis B and tuberculosis in Guangdong, China (Grant No. 2018ZX10715004).

Availability of data and materials

The datasets used or analysed in the current study are available from the corresponding author on reasonable request.

Author information

QSH and XD were involved in study design, data collecting, paper conceptualization, data analysis, and paper writing. HFX and LRF were involved in data collecting, quality control and project administration. RM and YNW were involved in data collecting and data analysis. CH, JHL and YTH were involved in study conceptualization and paper editing. JG was in charge of the study, and involved in study conceptualization, paper conceptualization, data analysis, project administration and supervision and paper editing. All authors contributed to the interpretation of the data and approved the final version for submission.

Correspondence to Jing Gu.

Ethics declarations

Ethics approval and consent to participate

The study protocol was reviewed and approved by the Institutional Review Board (IRB) of the School of Public Health, Sun Yat-sen University, Guangzhou, China (No: 2016–003). All subjects gave their informed consent for inclusion before they participated in the study.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

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He, Q., Du, X., Xu, H. et al. Intention to initiate antiretroviral therapy (ART) among people living with HIV in China under the scaling-up of ART: the role of healthcare workers’ recommendations. BMC Health Serv Res 19, 314 (2019) doi:10.1186/s12913-019-4143-9

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Keywords

  • HIV/AIDS
  • Antiretroviral therapy
  • Intention
  • Healthcare workers
  • China