Table 2.

Rate of serious and minor adverse events and statistical comparisons using univariate chi-squared comparisons and multivariate logistic regression odds ratios.

Total	Age < 80 y		Age ≥ 80 y		P	OR	95% CI	P
	N = 9375		N = 728
Any adverse event	263	2.8%	34	4.7%	.004	1.46	0.98-2.14	.057
Serious adverse event	166	1.8%	18	2.5%	.172	1.07	0.64-1.81	.785
Wound complication	79	0.8%	6	0.8%	.958	0.82	0.35-1.96	.661
Cardiac event	9	0.1%	4	0.6%	.001	2.60	0.65-10.3	.175
Pneumonia	14	0.2%	3	0.4%	.096	1.41	0.35-5.63	.627
Renal complications	3	0.02%	0	0.0%	-	-	-	-
Stroke	2	0.01%	0	0.0%	-	-	-	-
DVT/PE	52	0.6%	2	0.3%	.318	0.44	0.11-1.91	.278
Sepsis or septic shock	10	0.11%	4	0.55%	.002	3.36	0.86-13.2	.083
Death	5	0.05%	3	0.41%	.001	6.12	1.27-29.48	.024
Minor adverse event	59	0.6%	14	1.9%	<.001	2.97	1.55-5.68	.001
Blood transfusion	23	0.3%	7	1.0%	.001	3.42	1.32-8.86	.011
Urinary tract infection	37	0.4%	8	1.1%	.006	2.98	1.29-6.92	.011
Return to operation room	85	0.9%	7	1.0%	.881	0.97	0.43-2.21	.954
Prolonged LOS (>3 d)	433	4.6%	60	8.2%	<.001	2.30	1.67-3.14	<.001
Non-home dischargea	403	4.3%	123	16.9%	<.001	4.50	3.51-5.76	<.001
Readmission	176	2.3%	29	4.8%	<.001	1.72	1.11-2.66	.015

BMI, Body Mass Index; DVT, deep vein thrombosis; PE, pulmonary embolism.

Regression analysis adjusted for ASA class, BMI, functional status, tobacco use, use of general anesthesia, CHF, COPD, bleeding disorder, and prolonged operative time with the nonoctogenarian population used as the reference cohort. Significance was set at P < .05 and indicated by bold font. Empty cells indicate one or more comparisons had less than 10 patients.

^aHome discharge was considered home or to a facility which was considered home at the time of admission.