Table 2 Binary logistic regression analysis of the demographic and physiological factors associated with pre-hospital mortality among pre-hospital critical care missions

Sex

Male

Reference

Reference

Female

0.81 (0.55–1.17)

0.24

0.50 (0.10–2.56)

0.34

Age (years)

0–16

1.15 (0.59–2.25)

0.68

0.55 (0.12–2.42)

0.41

17–24

Reference

Reference

25–39

1.10 (0.61–1.98)

0.75

1.37 (0.20–9.47)

0.72

40–64

1.70 (0.95–3.07)

0.07

1.33 (0.35–5.08)

0.66

≥ 65

2.21 (1.15–4.26)

0.02

1.87 (0.32–10.78)

0.45

Distance from EMRS Base (km)

0–10

Reference

Reference

10–20

0.72 (0.52–0.99)

0.04

0.93 (0.35–2.43)

0.87

20–40

0.80 (0.57–1.12)

0.19

0.84 (0.28–2.53)

0.75

40–100

0.88 (0.62–1.23)

0.44

1.75 (0.33–9.27)

0.46

> 100

0.66 (0.43–1.02)

0.06

0.76 (0.19–2.97)

0.67

Observations on EMRS Arrival

Systolic Blood Pressure (mmHg)

≥ 90mmHg

Reference

Reference

< 90mmHg

1423.48 (69.93- 28975.63)

< 0.01

469.93 (37.98- 5813.96)

< 0.01

Respiratory Rate (Breaths per Minute)

6–30

Reference

Reference

< 6 or > 30

142.25 (61.41- 329.51)

< 0.01

28.76 (13.58–60.90)

< 0.01

Glasgow Coma Score

15

Reference

Reference

≤ 14

167.70 (38.13- 737.53)

< 0.01

16.94 (4.81–59.69)

< 0.01