Table 3.

The relationship between obesity and readmission controlling for differing covariates in conditional logistic models

Variables controlled for in model or match	Model 1	Model 2	Model 3
Procedure	Yes	Yes	Yes
Age	Yes	Yes	Yes
Sex	Yes	Yes	Yes
Hospital	Yes	Yes	Yes
Race	--	Yes	Yes
Emergency status	--	Yes	Yes
Transfer status	--	Yes	Yes
Comorbidities	--	--	Yes
Odds Ratio for readmission or death
Obese:Nonobese	1.36	1.35	1.25
95% Confidence Interval	(1.12–1.66)	(1.10–1.65)	(1.01–1.55)
P-value	0.002	0.003	0.04
Odds Ratio for readmission (deaths before readmission excluded)
Obese:Nonobese	1.35	1.34	1.23
95% Confidence Interval	(1.10–1.64)	(1.10–1.64)	(1.00–1.53)
P-value	0.004	0.005	0.05