Table 3.

Surgical Outcome Results

Outcome Measures		Obese %	Nonobese Complete Match %	Nonobese Limited Match %	Nonobese Complete Match		Nonobese Limited Match
Outcome Measures		Obese %	Nonobese Complete Match %	Nonobese Limited Match %	OR^†	95% CI	OR^†	95% CI

Death 30 days		1.18	0.83	1.03	1.50	(0.73, 3.19)	1.16	(0.60, 2.26)

Death 180 days		2.85	2.75	2.99	1.04	(0.69, 1.58)	0.95	(0.64, 1.40)

Complications 30 days

Wound infection		6.33	3.97	4.17	1.64	(1.21, 2.21)^d	1.59	(1.18, 2.16)^c

Sepsis		3.09	1.91	1.72	1.81	(1.14, 2.90)^b	1.9	(1.21, 3.04)^c

Respiratory		19.53	15.65	15.46	1.44	(1.19, 1.75)^e	1.44	(1.19, 1.75)^e

Venous thromboembolism		5.74	3.92	4.76	1.47	(1.09, 2.00)^a	1.23	(0.92, 1.64)

Central neurological events		4.91	4.66	5.55	1.06	(0.78, 1.44)	0.87	(0.65, 1.16)

Cardiac events		11.04	9.12	6.87	1.32	(1.04, 1.67)^a	1.69	(1.35, 2.14)^f

Hypotension/shock		8.24	6.23	6.63	1.38	(1.07, 1.80)^a	1.27	(0.99, 1.63)

Urinary T=tract infection		10.99	7.41	6.33	1.55	(1.24, 1.94)^e	1.85	(1.46, 2.35)^f

Pyelonephritis		0.39	0.20	0.05	2.00	(0.54, 9.07)	8.00	(1.07, 355)^a

Renal dysfunction		4.50	2.40	1.81	2.05	(1.39, 3.05)^e	2.67	(1.77, 4.11)^f

Internal organ damage		9.03	7.65	8.10	1.25	(0.95, 1.64)	1.16	(0.90, 1.49)

Bleeding (surgical or GI)		26.40	28.20	26.90	0.91	(0.79, 1.05)	0.97	(0.84, 1.13)

Decubitis ulcer		1.37	1.13	0.88	1.23	(0.67, 2.26)	1.59	(0.83, 3.10)

Orthopedic complications		4.17	4.46	4.22	0.92	(0.66, 1.29)	0.99	(0.70, 1.39)

Length of stay, days
Median (95% CI)		4.0 (4.0, 4.0)	4.0 (4.0, 4.0)	4.0 (4.0, 4.0)	Ratio^* (Obese to Nonobese)		Ratio^* (Obese to Nonobese)
90^th percentile (95% CI)		10.0 (9, 10)	9.0 (8, 9)	8.0 (8, 9)	1.12^f	95% CI (1.08, 1.17)	1.15^f	95% CI (1.11, 1.21)

Readmission or death

7 days		3.90	2.44	2.50	1.56	(1.08, 2.27)^a	1.67	(1.13, 2.50)^a

30 days		9.24	6.92	6.25	1.38	(1.08, 1.77)^b	1.53	(1.20, 1.96)^d

Costs and Payments, In-hospital or Within 30 Days		Obese	Nonobese Complete	Nonobese Limited	Ratio^* (Obese to Nonobese) Complete	Cost Ratio Minus PMT Ratio Complete	Ratio^* (Obese to Nonobese) Limited	Cost Ratio Minus PMT Ratio Limited

Costs ($) (Estimated Using Cost-to-Charge Ratios)	Median (95% CI)	16,779 (16,443, 16,994)	15,970 (15,698, 16,213)	15,993 (15,661, 16,260)	1.10^f (1.07, 1.12)	0.06^f (0.04, 0.08)	1.10^f (1.08, 1.13)	0.06^f (0.04, 0.08)
Costs ($) (Estimated Using Cost-to-Charge Ratios)	90^thpercentile (95% CI)	31,798 (30,069, 33,562)	27,822 (26,614, 29,647)	27,534 (26,331, 29,339)

Costs ($)(Estimated Using Resources)	Median (95% CI)	11,655 (11,469 11,938)	11,251 (11,003, 11,443)	11,211 (10,997, 11,433)	1.10^f (1.08, 1.13)	0.08^f (0.05, 0.10)	1.11^f (1.09, 1.14)	0.08^f (0.06, 0.10)
Costs ($)(Estimated Using Resources)	90^thpercentile (95% CI)	33,164 (30,329, 35,757)	29,388 (27,370, 32,164)	28,716 (25,981, 30,644)

Medicare Payments (Payment) ^†($)	Median (95% CI)	15,736 (15,541, 15,952)	15,622 (15,422, 15,835)	15,542 (15,344 15,748)	1.03^f (1.02, 1.05)	-------	1.03^f (1.02, 1.05)	-------
Medicare Payments (Payment) ^†($)	90^thpercentile (95% CI)	29,872 (28,746, 31,052)	28,768 (27,504, 29,880)	28,160 (27,155 29,448)

P values compare obese to nonobese:

< 0.05;

< 0.01;

< 0.005;

< 0.001;

< 0.0005;

<0.0001.

H-L: Hodges-Lehmann Estimator.

^†

OR: Odds ratio comparing obese with nonobese.