Comparing proportion of total audits with activated pre-MET, MET or CAT call and escalation per hospital policy by intervention and control groups at T0, T1 and T2
| Group | Time 0 | Time 1 | Time 1 vs Time 0* | Time 2 | Time 2 vs Time 0* | P value† |
| n/N (%) | n/N (%) | OR (95% CI) | n/N (%) | OR (95% CI) | ||
| Proportion of audits with escalation of care to pre-MET, MET or CAT as per hospital policy (N=2680)‡ | ||||||
| Both | 197/848 (23.2%) | 247/874 (28.3%) | 1.30 (1.05 to 1.62) | 279/958 (29.0%) | 1.35 (1.09 to 1.67) | |
| Intervention | 82/439 (18.8%) | 107/424 (25.2%) | 1.47 (1.06 to 2.04) | 110/470 (23.2%) | 1.32 (0.96 to 1.82) | 0.102 |
| Control | 115/409 (28.1%) | 140/450 (31.1%) | 1.15 (0.86 to 1.55) | 169/488 (34.6%) | 1.35 (1.02 to 1.80) | 0.055 |
|
Time 1 vs Time 0§
OR (99% CI) |
Time 2 vs Time 0§
OR (99% CI) | |||||
| 1.24 (0.69 to 2.30) | 0.92 (0.51 to 1.65) | |||||
| p=0.355 | p=0.735 | |||||
| Proportion of audits with pre-MET triggers where pre-MET was activated (N=2403) | ||||||
| Both | 168/753 (22.3%) | 213/778 (27.4%) | 1.31 (1.04 to 1.66) | 251/872 (28.8%) | 1.41 (1.12 to 1.77) | |
| Intervention | 66/387 (17.1%) | 90/376 (23.9%) | 1.53 (1.07 to 2.19) | 96/425 (22.6%) | 1.42 (1.00 to 2.02) | 0.057 |
| Control | 102/366 (27.9%) | 123/402 (30.6%) | 1.14 (0.84 to 1.56) | 155/447 (34.7%) | 1.37 (1.02 to 1.86) | 0.055 |
|
Time 1 vs Time 0§
OR (99% CI) |
Time 2 vs Time 0§
OR (99% CI) | |||||
| 1.29 (0.68 to 2.45) | 0.96 (0.52 to 1.88) | |||||
| p=0.311 | p=0.871 | |||||
| Proportion of audits with MET triggers where MET was activated (N=273) | ||||||
| Both | 29/95 (30.5%) | 32/94 (34.0%) | 1.17 (0.64 to 2.17) | 26/84 (31.0%) | 1.02 (0.54 to 1.94) | |
| Intervention | 16/52 (30.8%) | 17/48 (35.4%) | 1.23 (0.53 to 2.87) | 12/43 (27.9%) | 0.87 (0.35 to 2.14) | 0.791 |
| Control | 13/43 (30.2%) | 15/46 (32.6%) | 1.11 (0.45 to 2.78) | 14/41 (34.1%) | 1.19 (0.47 to 3.04) | 0.707 |
|
Time 1 vs Time 0§
OR (99% CI) |
Time 2 vs Time 0§
OR (99% CI) | |||||
| 1.11 (0.22 to 5.63) | 0.78 (0.15 to 4.16) | |||||
| p=0.873 | p=0.704 | |||||
*OR (95% CI) compares within-group difference across times in each study group.
†P value for trend tests the changes in the outcome across times (T0, T1 and T2) in each study group.
‡Number of CATs identified in audits were too small to analyse separately.
§Intervention effect: OR (99% CI) comparing changes over time from T0 between intervention and control at Time 1 and Time 2.
CAT, cardiac arrest team; MET, medical emergency team.