Table 2

Time (seconds) taken for successful orotracheal intubation (OTI) by medical specialty (anaesthesia, intensive care and emergency medicine) by OTI technique

Techniques used for OTI (T)Successful OTI time in secondsP value
OverallAnaesthesia (A)Intensive care (IC)Emergency (E)
DL+stylet (no AMS) (1)22 (17–28)18 (16–18)21.5 (20.2–25.7)27.5 (19.2–36.2)0.54
DL+AMS (HME filter without stylet) (2)22 (18–28)21 (18–22)35.5 (32.5–38.75)28 (27–34)0.03; A>IC
DL+AMS+stylet (3)31 (21–49)21 (16–24)31 (27.75–40)34 (24.5–47.2)0.055
VL+AMS (HME filter without stylet) (4)38.5 (25–52.7)38 (25–52.7)NANANA
VL+AMS+stylet (5)29 (20.5–39.5)19 (19–23)53 (42–62.5)33 (24–33)0.001; A<IC, A<E
  • Time values expressed as median (25%–75% percentile). Analysis between techniques (T1–T5) by specialty—analysis of variance: anaesthesiology (p=0.06); intensive care T5>T1 (p=0.02); emergency (p=0.86); overall T4>T1–T3 (p<0.001).

  • AMS, aerosol-mitigating strategy (during OTI); DL, direct laryngoscopy; HME, heat and moisture exchanger; NA, not applicable (ie, unsuccessful OTI in all cases); VL, videolaryngoscopy.