TABLE 4.

Multivariable logistic/negative binomial regression models^*

Categorical outcomes	BMI (obese versus nonobese)		P	WHR (obese versus nonobese)		P
	Estimate ± SE	OR (95% CI)		Estimate ± SE	OR (95% CI)
Composite end point	−0.17±0.23	0.84 (0.54–1.32)	0.46	−0.21±0.26	0.81 (0.49–1.37)	0.44
Intensive care unit mortality	−0.40±0.30	0.67 (0.38–1.20)	0.18	−0.14±0.32	0.87 (0.46–1.64)	0.66
Reintubation	0.28±0.34	1.32 (0.68–2.55)	0.41	0.56±0.37	1.75 (0.85–3.60)	0.13
Ventilator-associated pneumonia	−0.21±0.41	0.81 (0.36–1.83)	0.61	−0.26±0.52	0.77 (0.28–2.15)	0.62
Intensive care unit readmission	−0.72±0.41	0.49 (0.22–1.08)	0.08	−1.48±0.63	0.23 (0.07–0.79)	0.02
Six-month mortality	−0.53±0.26	0.59 (0.36–0.97)	0.04	−0.47±0.29	0.62 (0.35–1.10)	0.10
Continuous outcomes	Estimate ± SE	RR (95% CI)	P	Estimate ± SE	RR (95% CI)	P
Intensive care unit LOS, completed days†	0.51±0.17	1.67 (1.21–2.31)	0.002	0.29±0.20	1.33 (0.90–1.98)	0.15
Length of intubation, completed days	0.44±0.15	1.56 (1.17–2.07)	0.003	0.22±0.18	1.25 (0.88–1.76)	0.21

^*All models adjusted for age (<40 years, 40 to 69 years and ≥70 years), sex and diagnosis type (medical, surgical, trauma);

^†Zero truncated negative binomial model used for length of stay (LOS) because inclusion criteria required a minimum 24 h admission. Full model parameters are available for each outcome in Appendix A. BMI Body mass index (obese ≥30 kg/m²; nonobese 18.5 kg/m² to 29.9 kg/m²); RR Rate ratio; WHR Waist-to-height ratio (obese >75th percentile; nonobese ≤75th percentile)