Table A.1.

Odds ratios (ORs) demonstrating association between model variables and outcomes of 30-day mortality and non-home discharge

	Outcome: Mortality OR (95% CI)			Outcome: Non-home Discharge OR (95% CI)
	Base Model	Base Model + RAI	Base Model + mFI-5	Base Model	Base Model + RAI	Base Model + mFI-5
Age 50–64	Ref	Ref	Ref	Ref	Ref	Ref
Age 65–74	1.39 (1.13, 1.70)	1.43 (1.16, 1.77)	1.38 (1.12, 1.70)	1.79 (1.31, 2.45)	1.79 (1.30, 2.48)	1.76 (1.29, 2.42)
Age 75–84	1.94 (1.56, 2.42)	2.05 (1.63, 2.58)	1.93 (1.54, 2.41)	2.22 (1.56, 3.15)	2.21 (1.54, 3.18)	2.19 (1.54, 3.12)
Age 85+	2.82 (2.13, 3.75)	2.97 (2.21, 4.00)	2.79 (2.11, 3.71)	5.44 (3.29, 9.17)	5.09 (3.02, 8.73)	5.27 (3.18, 8.90)
Female	Ref	Ref	Ref	Ref	Ref	Ref
Male	0.90 (0.76, 1.06)	0.93 (0.78, 1.11)	0.90 (0.76, 1.06)	0.66 (0.50, 0.86)	0.62 (0.47, 0.82)	0.66 (0.51, 0.86)
No sepsis/SIRS or septic shock	Ref	Ref	Ref	Ref	Ref	Ref
Sepsis/SIRS	1.26 (1.00, 1.59)	1.21 (0.96, 1.54)	1.24 (0.99, 1.57)	2.89 (1.87, 4.52)	2.69 (1.73, 4.23)	2.82 (1.82, 4.42)
Septic Shock	2.90 (2.01, 4.26)	2.80 (1.93, 4.12)	2.88 (2.00, 4.23)	4.22 (1.74, 11.46)	3.53 (1.44, 9.65)	4.06 (1.66, 11.06)
ASA 1 or 2	Ref	Ref	Ref	Ref	Ref	Ref
ASA 3	1.96 (1.46, 2.64)	1.93 (1.44, 2.61)	1.92 (1.43, 2.60)	2.45 (1.65, 3.70)	2.34 (1.58, 3.54)	2.21 (1.48, 3.36)
ASA 4	3.40 (2.51, 4.65)	3.27 (2.39, 4.48)	3.28 (2.39, 4.53)	3.68 (2.38, 5.77)	3.07 (1.96, 4.89)	3.04 (1.92, 4.87)
ASA 5	11.42 (7.26, 18.30)	11.38 (7.23, 18.26)	11.22 (7.12, 18.01)	1.61 (0.65, 3.97)	1.56 (0.63, 3.86)	1.50 (0.61, 3.70)
Elective or Urgent Surgery	Ref	Ref	Ref	Ref	Ref	Ref
Emergent Surgery	2.28 (1.83, 2.85)	2.36 (1.89, 2.95)	2.32 (1.86, 2.90)	1.85 (1.19, 2.86)	1.96 (1.26, 3.06)	1.91 (1.23, 2.97)
RAI	-	1.04 (0.87, 1.24)	-	-	1.45 (1.08, 1.95)	-
(90^th percentile vs. 10^th)
mFI-5 (90^th percentile vs. 10^th)	-	-	1.09 (0.90, 1.31)	-	-	1.55 (1.13, 2.13)

Abbreviations: RAI = Risk Analysis Index; mFI-5 = 5-factor Modified Frailty Index; ASA = American Society of Anesthesiologists; SIRS = systemic inflammatory response syndrome.