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Table 2 Effect of a prompting scene timer on scene times for single casualty traumatic incidents attended by HEMS

From: The ticking clock: does actively making an enhanced care team aware of the passage of time improve pre-hospital scene time following traumatic incidents?

GroupNo Scene TimerScene TimerDifference in mins.% ChangeSignificance p
NumberMedian (Mean)IQR (SD)NumberMedian (Mean)IQR (SD)
All Incidents13425.516.314323.011.02.59.80.13
Adults (age > =18)12226.016.313023.011.33.011.50.20
Children (age < 18)12(24.4)(12.1)13(22.5)(7.7)1.97.70.45
RTC5327.017.06223.013.54.014.80.13
Non-RTC Mechanism8125.018.58124.011.01.04.00.27
Blunt Trauma12327.017.013224.010.83.011.10.08
Penetrating Trauma118.05.01111.014.0−3.0−37.50.64
Day10527.016.010323.012.04.014.80.08
Night29(24.1)(13.0)40(24.9)(9.1)−0.9−3.60.89
GCS > 88922.018.010423.012.8−1.0− 4.50.92
GCS < =845(29.7)(10.1)39(25.2)(8.1)4.515.10.028
RSI4434.013. 04228.011.06.017.60.007
No RSI9019.014.310121.011.0−2.0−10.50.96
Blood products15(27.3)(12.1)15(30.8)(8.8)−3.5−12.90.37
No Blood products11925.016.012823.011.02.08.00.21
Thoracostomy11(32.5)(15.7)16(31.9)(12.5)0.51.60.93
No Thoracostomy12325.017.012723.010.02.08.00.25
CPR9(26.7)(9.9)8(29.1)(13.3)−2.5−9.20.76
Helicopter Transport4927.013.58424.011.03.011.10.28
Ambulance Transport8523.019.05921.011.02.08.70.50
  1. RTC road traffic collision, GCS Glasgow coma scale, RSI rapid sequence induction, CPRcardiopulmonary resuscitation;