Table 2.

Multivariable analysis for overall and first attempt success

	Overall success		First attempt success
Variables	Odds Ratio (95% CI)	P-value	Odds Ratio (95% CI)†	P-value
Fellow training duration (quarter‡)	1.08 (1.01–1.17)	0.037	1.04 (0.98–1.10)	0.21
Age
Infant	baseline		baseline
1–7 year	1.42 (0.80–2.53)	0.24	1.08 (0.71–1.64)	0.71
≥ 8yr	1.80 (0.77–4.19)	0.18	1.60 (0.99–2.59)	0.054
History of difficult airway	0.75 (0.37–1.50)	0.41	0.53 (0.31–0.93)	0.025
Upper airway obstruction	0.42 (0.19–0.93)	0.033	0.75 (0.37–1.53)	0.43
Limited mouth opening	0.63 (0.29–1.37)	0.25	0.83 (0.51–1.33)	0.44

Based on multivariable logistic regression model with generalized estimated equation. Both models were statistically significant (p=0.028 for first attempt success, p=0.0006 for overall attempt success).

^†CI denotes confidence interval.

^‡Duration from the beginning of PCCM fellowship. Each quarter equals 3 months.