Table 5.

Multivariable model with oxygen saturation nadir and age.

	PRAE n/N (%)	Univariable Odds Ratio (95% CI)	P	Multivariable Odds Ratio (95% CI)	P
Oxygen saturation nadir		0.97 (0.93, 1.01)	.11	0.97 (0.93, 1.01)	.16
Age category (years)			.19		.25
≥ 6	6/57 (10.5)	1.00 (ref)		1.00 (ref)
3 to 5	6/41 (14.6)	1.46 (0.42, 5.02)		1.35 (0.38, 4.72)
< 3	3/8 (37.5)	5.10 (0.88, 27.02)		4.44 (0.74, 24.04)

The area under the receiver operating characteristic curve is 0.66 (95% CI: 0.49, 0.82). CI = confidence interval, PRAE = perioperative respiratory adverse event, ref = reference.