Table 3. Predictors of Postoperative Mortality Up to One Year After Emergent Major Abdominal Surgery (Including Post-Operative Complications).

Characteristic	0-30-Day Hazard Ratio (95% CI)	0-180-Day Hazard Ratio (95% CI)	0-365-Day Hazard Ratio (95% CI)
Age
Age: 75-84	1.21 (0.66 - 2.23)	1.17 (0.72 – 1.90)	1.34 (0.85 - 2.11)
Age: 85+	1.89 (1.00 – 3.55)	1.96 (1.18 – 3.26)	1.77 (1.08 - 2.90)
Comorbidities
Coronary Artery Disease (CAD)	0.77 (0.47 – 1.27)	0.98 (0.65 – 1.48)	0.89 (0.60 – 1.33)
Cancer	1.08 (0.68 – 1.71)	1.13 (0.78 – 1.65)	1.12 (0.78 – 1.61)
Congestive Heart Failure (CHF)	1.90 (1.10 – 3.24)	1.53 (0.98 – 2.38)	1.60 (1.05 - 2.44)
Diabetes	1.02 (0.62 – 1.68)	0.82 (0.54 – 1.25)	0.82 (0.55 – 1.22)
Renal Failure	1.43 (0.85 - 2.39)	1.83 (1.20 – 2.79)	1.50 (0.99 - 2.27)
Dementia	1.35 (0.72 - 2.53)	1.80 (1.08 – 3.01)	2.02 (1.24 – 3.31)
Hospital admit within 6 months prior to surgery	0.91 (0.58 – 1.50)	1.46 (0.98 – 2.16)	1.63 (1.12 - 2.38)
Activities of Daily Living (ADL): any dependence	1.34 (0.72 - 2.47)	1.26 (0.76 – 2.09)	1.05 (0.64 – 1.72)
Self-Reported Health: fair/poor	1.46 (0.87 - 2.45)	1.23 (0.81 – 1.87)	1.39 (0.94 - 2.07)
Any complications	7.16 (3.73 – 13.75)	3.57 (2.34 – 5.44)	3.45 (2.32 – 5.13)
Days between core interview and surgery	1.00 (1.00 – 1.00)	1.00 (1.00 – 1.00)	1.00 (1.00 – 1.00)

Base categories are Age: 65-74, Self-reported health: Excellent or very good, ADL: Independent.

Bold indicates statistical significance at p<0.05