Table 5 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* | ||
| 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 |
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.