Table 2.

Univariate analysis of propensity-score matched patient demographics and comorbidities.

Variable	Inpatient (N)	Inpatient (%)	Outpatient (N)	Outpatient (%)	P-Value	SDD (%)
Age					0.911	5.7
65-70	3752	31.7	1269	32.2
70-75	3750	31.7	1258	31.9
75-80	2798	23.6	919	23.3
80-85	1070	9.0	355	9.0
85+	465	3.9	144	3.7
Sex					0.876	0.2
Male	6055	51.2	2024	51.3
Female	5780	48.8	1921	48.7
Race					0.047	6.4
White	11,198	94.6	3692	93.6
Black	242	2.1	100	2.5
Other	395	3.3	153	3.9
Charlson Deyo Index					0.516	5.1
0	7217	61.0	2400	60.8
1	3183	26.9	1042	26.4
2	921	7.8	310	7.9
>2	514	4.3	193	4.9
Year of surgery					0.795	2.4
2016	3428	29.0	1132	28.7
2017	4343	36.7	1435	36.4
2018	4064	34.3	1378	34.9
Comorbidities
Smoking	541	4.6	189	4.8	0.569	1.0
Obesity	1481	12.5	500	12.7	0.792	0.4
Hypertension	7036	59.5	2336	59.2	0.793	0.5
Myocardial Infarction	471	4.0	169	4.3	0.402	1.5
Congestive Heart Failure	333	2.8	117	3.0	0.620	0.9
Peripheral Vascular Disease	268	2.3	100	2.5	0.330	1.7
Cerebrovascular Disease	82	0.7	39	1.0	0.065	3.2
Dementia	51	0.4	20	0.5	0.537	1.1
COPD	1650	13.9	545	13.8	0.842	0.4
Rheumatoid Disease	433	3.7	155	3.9	0.437	1.4
Mild Liver Disease	55	0.5	20	0.5	0.738	0.6
Severe Liver Disease	0	0.0	0	0.0	1.000	0
Renal Disease	531	4.5	196	5.0	0.211	2.3
End Stage Renal Disease	10	0.1	3	0.1	0.873	0.3
Diabetes without Complications	1784	15.1	591	15.0	0.888	0.3
Diabetes with Complications	302	2.6	106	2.7	0.643	0.9
Diabetes Insulin Dependent	210	1.8	73	1.9	0.755	0.6
Diabetes Non-Insulin Dependent	1845	15.6	611	15.5	0.879	0.3

SDD, Standardized Difference; COPD, Chronic obstructive pulmonary disease.