Table 7.
Propensity-adjusted multivariate regression model for video laryngoscopy subgroup
| Variable | Successful Tube Placement on First Intubation Attempt |
|||
|---|---|---|---|---|
| Unadjusted (Crude) |
Adjusted* |
|||
| Odds Ratio | 95% CI | Odds Ratio | 95% CI | |
| Paralytic use | 2.44 | 1.57–3.80 | 2.50 | 1.43–4.37 |
| Total number of DACs | ||||
| 0 | [Reference] | — | [Reference] | — |
| 1 | 0.61 | 0.30–1.22 | 0.53 | 0.25–1.11 |
| 2 | 0.63 | 0.30–1.34 | 0.66 | 0.29–1.50 |
| 3 | 0.49 | 0.23–1.07 | 0.49 | 0.21–1.17 |
| 4+ | 0.33 | 0.16–0.68 | 0.30 | 0.12–0.74 |
| Sedative | ||||
| None | [Reference] | — | [Reference] | — |
| Etomidate | 0.48 | 0.06–3.88 | 0.32 | 0.04–2.98 |
| Ketamine | 0.24 | 0.12–1.99 | 0.32 | 0.03–3.29 |
| Midazolam | 0.23 | 0.13–2.73 | 0.23 | 0.01–4.55 |
| Propofol | 0.32 | 0.15–3.01 | 0.33 | 0.02–6.30 |
| Operator PGY | ||||
| 1 | [Reference] | — | [Reference] | |
| 2 | 1.53 | 0.65–3.62 | 1.44 | 0.59–3.57 |
| 3 | 0.75 | 0.33–1.71 | 0.72 | 0.30–1.78 |
| 4 | 2.34 | 1.02–5.32 | 2.81 | 1.17–6.85 |
| 5 | 2.17 | 0.97–4.87 | 2.63 | 1.10–6.32 |
| 6 | 2.34 | 0.88–6.22 | 3.16 | 1.11–8.98 |
| Attending | 1 | — | 1 | — |
| Propensity score | — | — | 2.30 | 0.14–38.34 |
Definition of abbreviations: CI = confidence interval; DACs = difficult airway characteristics; PGY = postgraduate year of resident.
*
Adjusted for all other variables shown; Hosmer-Lemeshow goodness-of-fit P value = 0.12.