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Outcome from colonoscopies. Any colorectal pathology is any colorectal pathology that could account for a positive stool test (cancer, dysplastic polyps and non-neoplastic colorectal pathology including, but not limited to, colitis and haemorrhoids). Advanced neoplasia=colorectal cancer, >3 dysplastic polyps <1 cm or >1 dysplastic polyp ⩾1 cm. Advanced adenomas=3 dysplastic polyps <1 cm or >1 dysplastic polyp ⩾1 cm.
