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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: J Am Coll Surg. 2014 Dec 17;220(4):682–690. doi: 10.1016/j.jamcollsurg.2014.12.012

Table 3.

Percent of Patients Undergoing Elective Cholecystectomy by 2-year Model-Predicted Risk of Requiring Gallstone-Related Hospitalization

Risk group Total, n Undergoing elective cholecystectomy, n (%) p Value
Overall cohort (n=161,568)
    <30% 147,950 33,042 (22.3%) 0.002
    30 to <60% 9,959 2,079 (20.9%)
    ≥60% 3,659 846 (23.2%)
Patients with no comorbidities (n=25,633)
    <30% 22,257 7,597 (34.2%) <0.0001
    30 to <60% 2,297 576 (25.2%)
    ≥60% 1,079 288 (26.7%)