Table 2. Unadjusted and adjusted outcomes stratified by presence of postoperative respiratory failure (PRF).

Outcome	No PRF (n = 1,003,703)	PRF (n = 88,308)	P value	Estimate (Odds Ratio or β coefficient)	P value
Mortality	1.0	22.0	<0.001	10.4 (9.8–11.1)	<0.001
Non-home Discharge	7.2	48.2	<0.001	3.5 (3.4–3.6)	<0.001
Length of Stay (days)	3 (2–6)	11 (7–19)	<0.001	3.1 (3.0–3.2)	<0.001
Hospitalization Costs ($1,000)	13.1 (9.4–19.4)	39.1 (24.8–65.3)	<0.001	11.9 (11.6–12.3)	<0.001

Unadjusted outcomes reported as incidence per 100 (mortality and non-home discharge), or median and interquartile range (length of stay and costs). Adjusted outcomes reported as odds ratios or β coefficient for PRF vs. no PRF with 95% confidence intervals.