Table 4 Physiological parameters and life-saving procedures performed at ED for adult bicycle traffic accident trauma patients
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 |