(a).

	30-day survivala (n = 40,478)			1-year survivala (if they survived to 30 days; n = 39,227)			5-year survivala (if they survived to 1 year; n = 36,020)
	HR	95% CI	p	HR	95% CI	p	HR	95% CI	p
R nonobese, D nonobese	Ref.			Ref.			Ref.
R nonobese, D obese	1.02	(0.86, 1.21)	0.823	0.91	(0.82, 1.01)	0.076	1.03	(0.94, 1.13)	0.493
R obese, D nonobese	1.09	(0.94, 1.25)	0.247	0.86	(0.78, 0.94)	0.001	0.92b	(0.85, 1.00)	0.039
R obese, D obese	1.38b,c	(1.16, 1.65)	<0.001	0.84	(0.74, 0.95)	0.007	0.90b	(0.81, 1.02)	0.088

^aCox proportional hazards model. ^bStatistically significant difference relative to “R nonobese, D obese” group. ^cStatistically significant difference relative to “R obese, D nonobese” group.

All models are adjusted for D and R gender, D and R race, D and R age, R diagnosis, D and R diabetes history, D and R serum creatinine, D and R bilirubin, R INR, albumin, and MELD score at LT, and D SGOT and SGPT, acute rejection, PVT, and cold ischemia time. LT = liver transplantation, R = recipient, D = donor, HR = hazard ratio, and CI = confidence interval.