Canadian Journal of Gastroenterology and Hepatology / 2017 / Article / Tab 5

Research Article

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

Table 5

Adjusted odds ratios for very early repeat colonoscopy with same endoscopist as 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)0.99 (0.98, 1.00)0.99 (0.98, 1.01)0.99 (0.98, 1.00)0.99 (0.98, 1.00)

Patient sex
 Female0.93 (0.85, 1.03)1.09 (0.85, 1.39)0.94 (0.81, 1.09)0.92 (0.78, 1.08)
 MaleReferenceReferenceReferenceReference

Patient ADG 0.97 (0.95, 0.99)0.96 (0.92, 1.00)0.97 (0.94, 1.00)0.97 (0.04, 1.00)

Index colonoscopy factors
Setting
 Teaching hospital0.80 (0.62, 1.01)Not applicableNot applicableNot applicable
 Community hospitalReference
 Nonhospital facility0.71 (0.60, 0.83)

CompleteReferenceReferenceReferenceReference
Incomplete1.63 (1.37, 1.93)1.32 (0.91, 1.91)1.50 (1.18, 1.90)1.22 (0.91, 1.65)

Open accessReferenceReferenceReferenceReference
Not open access1.10 (0.98, 1.24)1.42 (1.03, 1.94)0.90 (0.74, 1.10)1.35 (1.11, 1.64)

Most complex procedure at index colonoscopy
 “Removal of large polyp or obstructing lesion”2.33 (1.75, 3.10)1.76 (0.83, 3.70)3.18 (1.94, 5.21)1.94 (1.26, 3.00)
 Standard polypectomy0.77 (0.68, 0.88)0.91 (0.63, 1.32)0.82 (0.69, 0.98)0.71 (0.57, 0.87)
 Biopsy0.35 (0.29, 0.43)0.49 (0.33, 0.74)0.35 (0.28, 0.45)0.30 (0.21, 0.42)
 None of the aboveReferenceReferenceReferenceReference

Index endoscopist prior year volumes
Colonoscopy 1.01 (0.99, 1.03)1.03 (0.97, 1.08)0.99 (0.97, 1.02)1.02 (1.00. 1.05)

Standard polypectomy 1.04 (1.01, 1.06)1.00 (0.93, 1.08)1.05 (1.01, 1.08)1.03 (0.99, 1.06)

Large or obstructing polypectomy 1.07 (1.02, 1.11)1.07 (0.96, 1.19)1.09 (1.02, 1.15)1.06 (1.00, 1.13)

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

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.