Table 3 Technical validity and adverse events for endotracheal intubation with the DLM by operator sub-group
Operator sub-group (device order) | p value* | ||||||
|---|---|---|---|---|---|---|---|
Experts (DLM then AWS) n = 20 | Novices 1 (DLM then AWS) n = 20 | Novices 2 (AWS then DLM) n = 20 | |||||
Events ** (out of 200 attempts) | Median [Q1–Q3]*** | Events** (out of 200 attempts) | Median [Q1–Q3]*** | Events ** (out of 200 attempts) | Median [Q1–Q3]*** | ||
Technically valid attempts, n | 146 | 9 [7–9] | 61 | 2 [1–4] | 84 | 4 [2–6] | 0.0005 |
Adverse technical events | |||||||
Esophageal intubation, n | 6 | 0 [0–0] | 34 | 1 [0–2] | 21 | 0 [0–2] | 0.02 |
Delayed ETI time (>60 s), n | 4 | 0 [0–0] | 30 | 1 [0–2] | 16 | 0 [0–1] | 0.003 |
Dental pressure, n | 49 | 1 [0–3] | 78 | 4 [2–5] | 76 | 3 [2–5] | 0.02 |
Epiglottis loading, n | 1 | 0 [0–0] | 26 | 1 [0–2] | 25 | 1 [0–2] | 0.0001 |
Lack of traction, n | 3 | 0 [0–0] | 35 | 1 [0–4] | 15 | 0 [0–1] | 0.002 |
Cormack–Lehane grade (median) | – | 1 [1, 2] | – | 2 [1, 2] | – | 2 [1, 2] | 0.008 |