Table 3. Multivariate Logistic Regression Analysis: Effect of Age on Mortality and Discharge Status.

	In-hospital Mortality		Discharge other than home*
Factor	Odds Ratio	95% CI	OR	95% CI
Age Group
<60	1.00	∼	1.00	∼
60 – 69	2.53	1.53 – 4.17	1.91	1.27 – 2.87
70 – 79	1.81	1.12 – 2.93	5.61	3.95 – 7.96
80+	4.45	2.31 – 8.57	16.35	10.41 – 25.67
Gender
Male	1.00	∼	1.00	∼
Female	0.77	0.54 – 1.11	1.16	0.90 – 1.50
Race
White	1.00	∼	1.00	∼
Black	1.57	0.91 – 2.67	1.50	1.00 – 2.26
Hispanic	0.95	0.59 – 1.54	0.98	0.69 – 1.39
Other	1.48	0.75 – 2.91	1.35	0.82 – 2.52
Hospital Volume
Low-volume (≤10/year)	1.00	∼	1.00	∼
High-volume (>10/year)	0.50	0.34 – 0.73	0.46	0.35 – 0.60
Year of Operation	0.89	0.81 – 0.97	1.07	1.00 – 1.15
Diagnosis
Periampullary cancer	1.00	∼	1.00	∼
Other	1.47	0.97 – 2.21	1.27	0.93 – 1.72
Risk of Mortality
1	1.00	∼	1.00	∼
2	1.87	0.70 – 4.96	1.49	0.98 – 2.28
3	6.23	2.55 – 15.22	3.20	2.11 – 4.86
4	60.92	25.2 – 147.3	4.81	2.95 – 7.85
Illness Severity
1	1.00	∼	1.00	∼
2	1.19	0.14 – 10.49	3.94	0.50 – 30.78
3	0.57	0.07 – 4.97	9.63	1.27 – 72.97
4	1.03	0.12 – 8.97	15.00	1.96 – 115.12
Admission Status
Elective	1.00	∼	1.00	∼
Urgent/Emergent	1.45	0.98 – 2.14	1.30	0.98 – 1.72
Procedure
Head resection	1.00	∼	1.00	∼
Distal resection	0.46	0.25 – 0.85	0.66	0.44 – 0.99
Pancreatectomy, not specified	0.47	0.20 – 1.09	1.11	0.62 – 1.97

^*Includes skilled nursing facilities, intermediate nursing facilities, other inpatient acute care hospitals, and Medicare- and Medicaid-certified long-term care hospitals or nursing facilities. Excludes hospital mortalities.

With permission from Riall et al. Ann Surg 2008;248:p. 464.²⁷