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Table 4 Physiological parameters and life-saving procedures performed at ED for adult bicycle 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 = 76
Helmet use
No n = 647
Odds ratio
(95%)
P Helmet use
Yes n = 76
Helmet use
No n = 76
Odds ratio
(95%)
P
Physiology at ED, n (%)
 SBP < 90 mmHg 1(1.3) 13(2.0) 0.7(0.08–5.04) 1.000 1(1.3) 1(1.3) 1.0(0.06–16.29) 1.000
 Heart rate > 100 beats/min 7(9.2) 105(16.2) 0.5(0.23–1.17) 0.110 7(9.2) 9(11.8) 0.8(0.27–2.14) 0.597
 Respiratory rate < 10 or >29 /min 0(0.0) 5(0.8) 1.000 0(0.0) 0(0.0)
Procedures at ED, n (%)
 Cardiopulmonary resuscitation 1(1.3) 2(0.3) 4.3(0.39–47.99) 0.284 1(1.3) 0(0.0) 1.000
 Intubation 1(1.3) 19(2.9) 0.4(0.06–3.34) 0.712 1(1.3) 1(1.3) 1.0(0.06–16.29) 1.000
 Chest tube insertion 0(0.0) 7(1.1) 1.000 0(0.0) 1(1.3) 1.000
 Blood transfusion 2(2.6) 23(3.6) 0.7(0.17–3.17) 1.000 2(2.6) 1(1.3) 2.0(0.18–22.84) 1.000
  1. ED emergency department, SBP systolic blood pressure