Association between post-extubation upper airway obstruction symptoms and airway size measured by computed tomography: a single-center observational study

Table 3 Multivariate logistic regression analysis for postextubation upper airway obstruction symptoms

Factors	Male			Female
Factors	OR^a	[95% CI^b]	p value	OR^a	[95% CI^b]	p value
Intubation attempts ≥ 3 times	2.81	[0.66- 11.96]	.16		Omitted
Duration of Intubation	1.09	[0.96- 1.24]	.19	1.11	[0.94–1.30]	.22
Ratio of glottis/ tube OD^c < 1		Omitted	.93	5.68	[1.04–30.97]	.045
Hosmer–Lemeshow goodness of fit test			0.11			0.22
c statistics [95% CI]	0.61	[0.50–0.72]		0.61	[0.46–0.75]

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