Canadian Journal of Gastroenterology and Hepatology / 2017 / Article / Tab 4

Research Article

Repeat Colonoscopy within 6 Months after Initial Outpatient Colonoscopy in Ontario: A Population-Based Cross-Sectional Study

Table 4

Adjusted odds ratios for very early repeat colonoscopy among patients with polypectomy or biopsy at index .

Clinical setting of index colonoscopy
OverallTeaching hospitalCommunity hospitalNonhospital facility
OR (95% CI)OR (95% CI)OR (95% CI)

Patient factors
Patient age (per one year increase)1.02 (1.02, 1.02)1.02 (1.01, 1.03)1.02 (1.01, 1.02)1.02 (1.01, 1.03)

Patient sex
 Female0.75 (0.70, 0.79)0.67 (0.57, 0.79)0.71, (0.66, 0.78)0.82 (0.74, 0.91)
 MaleReferenceReferenceReferenceReference

Patient ADG 1.03 (1.02, 1.04)1.06 (1.04, 1.09)1.03 (1.02, 1.04)1.02 (1.00, 1.04)

Index colonoscopy factors
Setting
 Teaching hospital1.02 (0.88, 1.19)Not applicableNot applicableNot applicable
 Community hospitalReference
 Nonhospital facility1.44 (1.30, 1.60)

CompleteReferenceReferenceReferenceReference
Incomplete8.18 (7.07, 9.45)7.76 (5.93, 10.14)7.04 (5.75, 8.62)11.64 (8.87, 15.27)

Index endoscopist prior year volumes
Colonoscopy 0.99 (0.98, 1.01)0.95 (0.92, 0.97)0.97 (0.95, 0.99)1.02 (1.00, 1.04)

Standard polypectomy 0.99 (0.97, 1.01)1.06 (1.02, 1.10)1.02 (1.00, 1.04)0.96 (0.94, 0.98)

Volume of “removal of large polyp or obstructing lesion”1.01 (0.98, 1.03)1.02 (0.96, 1.08)0.98 (0.95, 1.02)1.02 (0.97, 1.07)

one unit increase; root transformation; transformation; for patient socioeconomic status, endoscopist specialty, and sex.

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