Table 4.

Multivariable Logistic Regression Model: Factors Associated with Surgical Evaluation in Older Patients Presenting with Symptomatic Gallstones

	Factors associated with surgical evaluation*, odds ratio (95% CI)
Age group, y
66-69	1.00 (REF)
70-74	0.89 (0.87, 0.92)
75-79	0.74 (0.71, 0.76)
80+	0.47 (0.46, 0.49)
Sex
Female	1.00 (REF)
Male	0.76 (0.75, 0.78)
Race
White	1.00 (REF)
Black	0.59 (0.65, 0.62)
Hispanic	0.85 (0.81, 0.89)
Other	0.62 (0.57, 0.67)
Elixhauser comorbidities
0	1.00 (REF)
1	0.93 (0.90, 0.96)
2	0.74 (0.71, 0.77)
>=3	0.37 (0.36, 0.38)
Initial diagnosis
Biliary colic	1.00 (REF)
Acute cholecystitis	2.26 (2.21, 2.32)
Common bile duct stones	0.96 (0.90, 1.02)
Gallstone pancreatitis	1.16 (1.08, 1.25)
Location of initial visit
Physician visit	1.00 (REF)
Emergency room visit	0.75 (0.72, 0.77)