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Table 1 Demographics and yield of advanced neoplasia‡ in three different indication groups in 1041 asymptomatic, high-risk subjects referred for surveillance colonoscopy

From: Faecal immunochemical test accuracy in patients referred for surveillance colonoscopy: a multi-centre cohort study

   N (%) Demographics Yield
    Mean age (range) Males (%) CRC (%) Adv Adenomas*(%) Advanced neoplasia (%)
Indication for colonoscopy Personal history of adenomas 516 (49.6) 63.2 (29–87) 279 (54.1) 1 (0.2) 59 (11.4) 60 (11.6)
  Personal history of CRC§ 172 (16.5) 66.2 (44–86) 82 (47.7) 3 (1.7) 19 (11.0) 22 (12.8)
  Family history of CRC§ 353 (33.9) 54.3 (27–82) 161 (45.6) 1 (0.3) 23 (6.5) 24 (6.8)
  Total population 1041 (100) 60.7 (27–87) 522 (50.1) 5 (0.5) 101 (9.7) 106 (10.2)
  1. Advanced neoplasia is defined as either one or more advanced adenoma(s) or a CRC.
  2. § CRC: colorectal cancer.
  3. * Advanced adenoma: Adenomas ≥1.0 cm, with any villous features (i.e. tubulovillous or villous adenoma) or high-grade dysplasia.