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Table 3 Physiological parameters and life-saving procedures performed at ED for adult motorcycle traffic accident trauma patients

From: The protective effect of helmet use in motorcycle and bicycle accidents: a propensity score–matched study based on a trauma registry system

 

Original cohort

Propensity score-matched cohort

Parameters

Helmet use

Yes n = 7735

Helmet use

No n = 863

Odds ratio

(95%)

P

Helmet use

Yes n = 856

Helmet use

No n = 856

Odds ratio

(95%)

P

Physiology at ED, n (%)

 SBP < 90 mmHg

163(2.1)

24(2.8)

0.8(0.49–1.16)

0.198

18(2.1)

24(2.8)

0.7(0.40–1.38)

0.349

 Heart rate > 100 beats/min

1363(17.6)

182(21.1)

0.8(0.67–0.95)

0.012

159(18.6)

181(21.1)

0.9(0.67–1.08)

0.183

 Respiratory rate < 10 or >29 /min

34(0.4)

11(1.3)

0.3(0.17–0.68)

0.004

5(0.6)

11(1.3)

0.5(0.16–1.31)

0.132

Procedures at ED, n (%)

 Cardiopulmonary resuscitation

8(0.1)

2(0.2)

0.4(0.09–2.10)

0.265

1(0.1)

2(0.2)

0.5(0.05–5.52)

1.000

 Intubation

147(1.9)

57(6.6)

0.3(0.20–0.38)

<0.001

17(2.0)

57(6.7)

0.3(0.16–0.49)

<0.001

 Chest tube insertion

108(1.4)

16(1.9)

0.8(0.44–1.27)

0.285

14(1.6)

16(1.9)

0.9(0.42–1.80)

0.713

 Blood transfusion

266(3.4)

38(4.4)

0.8(0.55–1.09)

0.146

37(4.3)

38(4.4)

1.0(0.61–1.55)

0.906

  1. ED = emergency department; SBP = systolic blood pressure