Table 5 Summary of results of the final hierarchical multiple regression model: the dependent variable is the injurious fall rate per 1000 patient-days
| Â | R2 | Adjusted R2 | F change | Significance |
|---|---|---|---|---|
Initial model summary (covariates only) | 0.07 | 0.06 | 6.97 | p < 0.001** |
Final model summary (covariates and predictor) | 0.08 | 0.07 | 6.78 | 0.009** |
Final model | Â | Â | Â | Â |
ANOVA | Sum of squares (df) | Mean square | F value | Significance |
Regression | 104.50 (13) | 8.04 | 6.99 | p < 0.001** |
Residual | 1206.50 (1049) | 1.15 | Â | Â |
Total | 1310.99 (1062) | Â | Â | Â |
Covariates and predictor | Standardized coefficient (β) | t | Significance |  |
(Constant) | -- | 5.17 | p < 0.001** | Â |
Hospital 1 (the reference group) | -- | -- | -- | Â |
Hospital 2 (1 = Yes, 0 = No) | -0.11 | -2.01 | 0.045* | Â |
Hospital 3 (1 = Yes, 0 = No) | -0.10 | -2.37 | 0.02* | Â |
Hospital 4 (1 = Yes, 0 = No) | 0.08 | 1.79 | 0.07 | Â |
Medical unit (the reference group) | -- | -- | -- | Â |
Surgical unit (1 = Yes, 0 = No) | -0.11 | -2.91 | 0.004** | Â |
Medical-surgical combined unit (1 = Yes, 0 = No) | -0.09 | -2.69 | 0.007** | Â |
Total productive nursing hours/patient-day | 0.14 | 3.12 | 0.002** | Â |
Percentage of productive nursing hours provided by RNs | -0.20 | -4.09 | p < 0.001** | Â |
Percentage of patients aged ≥ 65 years | -0.13 | -3.19 | 0.001** |  |
Average CMI value | 0.07 | 1.85 | 0.07 | Â |
Percentage of patients with altered mental status at admission | 0.05 | 1.48 | 0.14 | Â |
Percentage of patients with hearing difficulties at admission | 0.01 | 0.39 | 0.70 | Â |
Call light use rate per patient-day (in 10 equal groups; 10 = least frequent, 100 = most frequent) | -0.07 | -2.08 | 0.04* | Â |
Call light response time (in 10 equal groups; 10 = fastest, 100 = slowest) | 0.08 | 2.60 | 0.009** | Â |