Table 5 Variables associated with significant high or low rates of HEMS-level intervention/drug/diagnostic (multivariate model)
AMPDS category / n | Night (ref: day) | RRV (ref: helicopter) | Dispatch desk CCP (ref: no CCP) | Male (ref: female) | Age < 16 years (ref: 16–55 years) | Age > 55 years (ref: 16–55 years) |
|---|---|---|---|---|---|---|
Adjusted odds ratio (95% confidence interval) | ||||||
06—Breathing problems n = 493 | ns | 0.4 (0.3–0.6) | ns | ns | 0.1 (0.1–0.3) | ns |
07—Burns n = 200 | 0.3 (0.1–0.6) | ns | ns | ns | 0.5 (0.2–0.9) | 0.4 (0.2–0.9) |
09—Cardiac/respiratory n = 3128 | ns | 0.7 (0.6–0.8) | ns | 1.2 (1.1–1.4) | 0.6 (0.5–0.9) | 1.3 (1.1–1.5) |
10—Chest pain n = 277 | ns | 0.3 (0.2–0.6) | ns | ns | ns | ns |
12—Convulsions/fitting n = 760 | ns | ns | ns | 1.4 (1.1–1.9) | 0.5 (0.3–0.7) | ns |
17—Falls n = 1785 | 0.7 (0.6–0.9) | 0.6 (0.5–0.8) | ns | ns | 0.4 (0.3–0.6) | ns |
27—Stab/gunshot n = 549 | ns | 0.3 (0.2–0.4) | ns | ns | ns | ns |
29—RTC n = 3018 | 1.3 (1.0–1.5) | 0.5 (0.4–0.6) | ns | 1.5 (1.2–1.8) | ns | ns |
30—Traumatic injuries n = 786 | 0.5 (0.3–0.9) | 0.6 (0.3–0.9) | ns | ns | 0.6 (0.4–0.9) | 1.4 (1.1–2.1) |
31—Unconscious/fainting n = 682 | ns | 0.7 (0.5–0.9) | ns | ns | 0.1 (0.1–0.3) | ns |