Table 1.

Patient characteristics up to 1 year after surgery.

Characteristics	Entire Cohort N=37,748	Subjects Alive at 1 year n=27,048	Subjects dead at 1 year n=10,700	P
Type of surgery/procedure, n (%)
Gastrectomy	9791 (25.9)	7102 (26.3)	2689 (25.1)	<.0001
Cystectomy	14294 (37.9)	10571 (39.1)	3723 (34.8)
Pancreaticoduodenectomy	10845 (28.7)	7299 (27.0)	3546 (33.1)
Esophagectomy	2818 (7.5)	2076 (7.7)	742 (6.9)
Age (years), n (%)
65–69	11448 (30.3)	8723 (32.3)	2725 (25.5)	<.0001
70–74	8304 (22.0)	6142 (22.7)	2162 (20.2)
75–79	9133 (24.2)	6485 (24.0)	2648 (24.7)
80–84	6035 (16.0)	3994 (14.8)	2041 (19.1)
≥ 85	2828 (7.5)	1704 (6.3)	1124 (10.5)
Mean ± SD	74.8 ± 6.3	74.3 ± 6.1	75.8 ± 6.6	<.0001
Gender, n (%)
Male	25021 (66.3)	17954 (66.4)	7067 (66.0)	0.5391
Female	12727 (33.7)	9094 (33.6)	3633 (34.0)
Race, n (%)
White	31778 (84.2)	22782 (84.2)	8996 (84.1)	<.0001
Black	3314 (8.8)	2248 (8.3)	1066 (10.0)
Other	2656 (7.0)	2018 (7.5)	638 (6.0)
Disposition after hospitalization, n (%)
Home (no assistance)	29125 (77.2)	22015 (81.4)	7110 (66.4)	<.0001
Facility (SNF, Hospice, Inpatient)	8623 (22.8)	5033 (18.6)	3590 (33.6)
Charlson Comorbidity Index Score, n (%)
0–1	17525 (46.4)	13620 (50.4)	3905 (36.5)	<.0001
2–4	17831 (47.2)	12079 (44.7)	5752 (53.8)
>4	2392 (6.3)	1349 (5.0)	1043 (9.7)
Hospital length of stay (LOS) in days, Mean ± SD	12.3 ± 9.9	11.1 ± 8.2	15.4 ± 12.6	<.0001
Number of hospital admissions, Mean ± SD	1.5 ± 2.0	1.3 ± 1.9	2.0 ± 2.1	<.0001
Number of days spent in hospital after index admission, Mean ± SD	13.9 ± 26.2	11.5 ± 25.4	19.7 ± 27.0	<.0001
Number of SNF admissions, Mean ± SD	1.5 ± 1.0	1.5 ± 1.0	1.5 ± 0.9	0.2127
Number of days in SNF, Mean ± SD	37.2 ± 50.6	41.0 ± 57.8	31.6 ± 37.0	<.0001
Death within 1 year, cumulative n (%)
1 month	1364 (3.6)	--	1364 (12.7)
3 months	3278 (8.7)	--	3278 (30.6)
6 months	6018 (15.9)	--	6018 (56.2)
9 months	8514 (22.6)	--	8514 (79.6)