Canadian Journal of Gastroenterology and Hepatology / 2017 / Article / Tab 2

Research Article

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

Table 2

Very early repeat colonoscopy: patient characteristics and description of index colonoscopy (7,892).

Clinical setting of index colonoscopyTeaching hospitalCommunity hospitalNonhospital facility

955/35,988 (2.7%)3,890/181,039 (2.1%)3,047/117,636 (2.6%)7,892/334,663

Patient characteristics value among strata
Age
 50–54 years175 (18.3%)707 (18.2%)777 (25.5%)<0.0001
 55–59 years166 (17.4%)715 (18.4%)625 (20.5%)
 60–64 years180 (18.9%)741 (19.1%)629 (20.6%)
 65–69 years181 (19.0%)776 (20.0%)528 (17.3%)
 70–74 years154 (16.1%)555 (14.3%)322 (10.6%)
 75–79 years99 (10.4%)396 (10.2%)166 (5.5%)

Female445 (46.6%)1651 (42.4%)1290 (42.3%)0.05
Male510 (53.4%)2239 (57.6%)1757 (57.7%)

Residence
 Income quintile 1174 (18.2%)529 (13.6%)451 (14.8%)<0.0001
 Income quintile 2156 (16.3%)598 (15.4%)531 (17.4%)
 Income quintile 3163 (17.1%)630 (16.2%)587 (19.3%)
 Income quintile 4179 (18.7%)680 (17.5%)657 (21.6%)
 Income quintile 5199 (20.8%)638 (16.4%)692 (22.7%)
 Rural84 (8.8%)815 (21.0%)129 (4.2%)

ADG score
 Mean (SD)5.93 (3.49)5.44 (3.09)4.83 (2.84)<0.0001
 Median (IQR)5 (3–8)5 (3–7)4 (3–6)

Colonoscopy description
Complete770 (80.6%)3409 (87.6%)2617 (85.9%)<0.0001
Incomplete185 (19.4%)481 (12.4%)430 (14.1%)

Open access564 (59.1%)1193 (30.7%)2172 (71.3%)<0.0001
Not open access391 (40.9%)2697 (69.3%)875 (28.7%)

Most complex procedure at index colonoscopy
 Removal of large polyp or obstructing lesion59 (6.2%)407 (10.5%)181 (5.9%)<0.0001
 Standard polypectomy318 (33.3%)1247 (32.1%)876 (28.8%)
 Biopsy165 (17.3%)567 (14.6%)442 (14.5%)
 None of the above or none413 (43.3%)1669 (42.9%)1548 (50.8%)

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