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
	Overall	Teaching hospital	Community hospital	Nonhospital 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
Female	0.75 (0.70, 0.79)	0.67 (0.57, 0.79)	0.71, (0.66, 0.78)	0.82 (0.74, 0.91)
Male	Reference	Reference	Reference	Reference
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 hospital	1.02 (0.88, 1.19)	Not applicable	Not applicable	Not applicable
Community hospital	Reference
Nonhospital facility	1.44 (1.30, 1.60)
Complete	Reference	Reference	Reference	Reference
Incomplete	8.18 (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.