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. Author manuscript; available in PMC: 2020 Apr 16.
Published in final edited form as: J Am Geriatr Soc. 2020 Jan 25;68(3):505–510. doi: 10.1111/jgs.16344

Table 3.

Risk factor analysis of discharge to a facility. Adjusted for calendar year.

Basic Statistics Univariate Model RR Multivariate Model RR
Characteristics Entire Cohort N=37748 Discharged n=7416 P RR & 95% CI P Global P RR & 95% CI P Global P
Type of surgery/procedure
 Gastrectomy 9791 (25.9) 1861 (19.0) 0.1184 Ref. 0.1148 Ref. <.0001
 Cystectomy 14294 (37.9) 2843 (19.9) 1.05 (0.99 – 1.10) 0.0902 1.52 (1.44 – 1.60) <.0001
 Pancreaticoduodenectomy 10845 (28.7) 2182 (20.1) 1.06 (1.00 – 1.12) 0.0445 1.15 (1.09 – 1.21) <.0001
 Esophagectomy 2818 (7.5) 530 (18.8) 0.99 (0.91 – 1.08) 0.8119 1.27 (1.17 – 1.39) <.0001
Age (years)
 65–69 11448 (30.3) 1373 (12.0) Ref. <.0001 Ref. <.0001
 70–74 8304 (22.0) 1281 (15.4) 1.29 (1.20 – 1.38) <.0001 1.27 (1.18 – 1.36) <.0001
 75–79 9133 (24.2) 2004 (21.9) 1.83 (1.72 – 1.95) <.0001 1.76 (1.65 – 1.87) <.0001
 80–84 6035 (16.0) 1734 (28.7) 2.40 (2.25 – 2.55) <.0001 2.27 (2.13 – 2.41) <.0001
 ≥85 2828 (7.5) 1024 (36.2) 3.02 (2.82 – 3.24) <.0001 2.75 (2.57 – 2.95) <.0001
Gender
 Male 25021 (66.3) 4372 (17.5) <.0001 Ref. <.0001 Ref. <.0001
 Female 12727 (33.7) 3044 (23.9) 1.37 (1.31 – 1.43) <.0001 1.40 (1.34 – 1.46) <.0001
Race
 White 31778 (84.2) 6185 (19.5) <.0001 Ref. <.0001 Ref. 0.0331
 Black 3314 (8.8) 749 (22.6) 1.16 (1.09 – 1.24) <.0001 1.09 (1.02 – 1.16) 0.0130
 Other 2656 (7.0) 482 (18.1) 0.93 (0.86 – 1.01) 0.1017 0.97 (0.90 – 1.05) 0.4802
Charlson Comorbidity Index Score
 0 to 1 17525 (46.4) 2656 (15.2) <.0001 Ref. <.0001 Ref. <.0001
 2 to 3 17831 (47.2) 3715 (20.8) 1.37 (1.31 – 1.44) <.0001 1.37 (1.30 – 1.43) <.0001
 >4 2392 (6.3) 1045 (43.7) 2.88 (2.72 – 3.05) <.0001 2.40 (2.26 – 2.55) <.0001
Hospital length of stay (days)
 1–6 7619 (20.2) 716 (9.4) <.0001 Ref. <.0001 Ref. <.0001
 7–8 9458 (25.1) 1488 (15.7) 1.67 (1.54 – 1.82) <.0001 1.58 (1.46 – 1.72) <.0001
 9–13 10360 (27.4) 2103 (20.3) 2.16 (2.00 – 2.34) <.0001 2.00 (1.85 – 2.16) <.0001
 ≥14 10311 (27.3) 3109 (30.2) 3.21 (2.97 – 3.46) <.0001 2.81 (2.60 – 3.02) <.0001