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Description of the study population stratified by procedure/diagnosis codes at index colonoscopy (cohorts 1–3)a and type of index colonoscopy (screening vs diagnostic)
IQR, interquartile range.
Cohort 1: persons with a code for snare polypectomy, cohort 2: persons assigned to the group “forceps polypectomy,” and cohort 3: persons without codes indicating polyps/polypectomy.
