Table 1 Results of univariate logistic regression for associations between attendance of Pre-Hospital Critical Care team and year, modelled time to Major Trauma Centre, day or night period, and mechanism of injury
Pre-Hospital Critical Care Response | Conventional Ambulance Response | Univariate Odds Ratio for PHCC Response (95% Confidence Interval) | p value | |
|---|---|---|---|---|
Number of incidents (% of each service type) | ||||
Year | ||||
2013 | 28 (4.6%) | 205 (10.2%) | For each year; 1.10 (1.06–1.13) | < 0.005 |
2014 | 34 (5.6%) | 191 (9.5%) | ||
2015 | 54 (8.9%) | 216 (10.7%) | ||
2016 | 83 (13.6%) | 225 (11.2%) | ||
2017 | 72 (11.8%) | 170 (8.5%) | ||
2018 | 45 (7.4%) | 185 (9.2%) | ||
2019 | 51 (8.4%) | 231 (11.5%) | ||
2020 | 87 (14.3%) | 247 (12.3%) | ||
2021 | 67 (11.0%) | 149 (7.4%) | ||
2022 | 88 (14.4%) | 191 (9.5%) | ||
Total | 609 (100%) | 2010 (100%) | ||
Modelled time to Major Trauma Centre | ||||
≤ 30 min | 292 (47.9%) | 1385 (68.9%) | Reference | |
31–60 min | 182 (29.9%) | 394 (19.6%) | For each successive 30-minute isochrone; 1.42 (1.30–1.55) | < 0.005 |
61–90 min | 85 (14.0%) | 137 (6.8%) | ||
91–120 min | 30 (4.9%) | 42 (2.1%) | ||
121–150 min | 20 (3.3%) | 52 (2.6%) | ||
Total | 609 (100%) | 2010 (100%) | ||
Day or Night Period | ||||
Day (0800–2000) | 427 (82.1%) | 1198 (78.9%) | Reference | |
Night (2000 − 0800) | 93 (17.9%) | 321 (21.1%) | 0.813 (0.63–1.05) | 0.112 |
Total | 520 (100%) | 1519 (100%) | ||
Missing | 89 | 491 | ||
Mechanism | ||||
Falls of < 2 m | 54 (8.9%) | 589 (30%) | Reference | |
Falls of > 2 m | 135 (22.2%) | 495 (24%) | 2.97 (2.13–4.20) | < 0.005 |
Burn, blast or crush | 16 (2.6%) | 19 (1%) | 9.19 (4.43–18.90) | < 0.005 |
Interpersonal Violence | 81 (13.3%) | 240 (12%) | 3.68 (2.54–5.38) | < 0.005 |
Vehicle incidents | 285 (46.8%) | 527 (26%) | 5.90 (4.34–8.14) | < 0.005 |
Other | 38 (6.2%) | 140 (7%) | 2.96 (1.87–4.65) | < 0.005 |
Total | 609 (100%) | 2010 (100%) | ||