Table 2.
Impact of the intervention on the rate of falls
| Average number of falls per 1000 bed days over study period | Initial rate of falls (Intercept) |
Time (Pre-intervention slope) |
Intervention (Shift) |
Post intervention time (Post-intervention slope) |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Control, mean (SD) | Intervention, mean (SD) | IR (95% CI) | p-value | IRR* (95% CI) | p-value | IRRb (95% CI) | p-value | IRRa (95% CI) | p-value |
| 6.62 (4.80) | 5.89 (5.38) | 6.54 (5.76–7.43) | < 0.001 | 0.99 (0.99–1.00) | 0.087 | 1.02 (0.92–1.14) | 0.669 | 0.97 (0.95–0.99) | < 0.001 |
IR Incidence rate, IRR Incidence rate ratio, CI Confidence interval
a The estimate here indicates the change each month in the rate of falls compared to the previous month.
b The estimate here indicates the change in the rate of falls in the month immediately following the intervention implementation to the month preceding it.