Comparison of reporting rates at baseline and during the study period according to the principal incident type in matched control and intervention departments
| Baseline | End | Comparison at end adjusted for baseline†p value | |||||
|---|---|---|---|---|---|---|---|
| Control % of reports (n) | Intervention % of reports (n) | Rate ratio* | Control % of reports (n) | Intervention % of reports (n) | Rate ratio* | ||
| OH&S, Occupational Health and Safety. | |||||||
| *Fisher’s exact test. | |||||||
| †End of study comparisons between intervention and control units were undertaken by formally testing the interaction term between period and study group in the generalised linear models. | |||||||
| ‡Clinical management examples include procedures not done, delayed, incorrect or inadequate, wrong body part or site, unnecessary assessment, test or procedure, non-adherence to rules, policy and procedure. | |||||||
| ¶Organisational management examples include unavailable supplies, inadequate supervision/staffing level and after-hour delays. | |||||||
| Falls | 39.9% (131) | 36.1% (152) | 1.1 (0.9, 1.4) | 48.0% (263) | 23.8% (304) | 2.01 (1.7, 2.3) | <0.001 |
| Medication | 24.4% (80) | 26.8% (113) | 0.91 (0.7, 1.2) | 25.2% (138) | 27.9% (356) | 0.90 (0.7, 1.1) | 0.942 |
| Documentation | 2.7% (9) | 4.5% (19) | 0.61 (0.3, 1.3) | 3.0% (16) | 11.4% (146) | 0.25 (0.1, 0.4) | 0.004 |
| Clinical management ‡ | 7.3% (24) | 8.1% (34) | 0.91 (0.5, 1.5) | 5.3% (29) | 11.4% (146) | 0.46 (0.3, 0.7) | 0.035 |
| Accident/OH&S | 4.6% (15) | 5.5% (23) | 0.84 (0.4, 1.6) | 4.0% (22) | 4.8% (61) | 0.84 (0.5, 1.3) | 0.949 |
| Organisational management¶ | 3.7% (12) | 2.4% (10) | 1.54 (0.7, 3.7) | 5.7% (31) | 4.1% (53) | 1.36 (0.9, 2.0) | 0.868 |
| Behaviour/human performance | 6.1% (20) | 4.3% (18) | 1.43 (0.7, 2.7) | 3.5% (19) | 3.3% (42) | 1.05 (0.6, 1.8) | 0.339 |
| Blood/blood products | 0.3% (1) | 0.9% (4) | 0.32 (0, 2.6) | 1.1% (6) | 0.7% (8) | 1.74 (0.6, 5.1) | 0.147 |
| Medical device/equipment | 2.7% (9) | 6.9% (29) | 0.40 (0.2, 0.8) | 1.3% (7) | 4.8% (61) | 0.27 (0.1, 0.6) | 0.720 |
| Aggression | 4.0% (13) | 2.4% (10) | 1.67 (0.7, 3.9) | 1.8% (10) | 4.4% (56) | 0.41 (0.2, 0.8) | 0.011 |
| Security | 0.6% (2) | 0 | 0.9% (5) | 1.2% (15) | 0.78 (0.2, 2.1) | 0.290 | |
| Buildings/fittings/surroundings | 0.9% (3) | 0 | 0 | 1.2% (15) | 0.005 | ||
| Infection | 0 | 0.2% (1) | 0.2% (1) | 0.3% (4) | 0.58 (0, 4.6) | 0.806 | |
| Nutrition | 0.3% (1) | 0.7% (3) | 0.43 (0, 8.0) | 0.2% (1) | 0.4% (5) | 0.46 (0, 3.4) | 0.723 |
| Total | 100% (328) | 100% (421) | 0.045 | 100% (548) | 100% (1275) | <0.001 | <0.001 |