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Table 1 Clinical characteristics of the patients and polyps

From: High-definition endoscopy with digital chromoendoscopy for histologic prediction of distal colorectal polyps

  Patient characteristics
  Patients with distal colorectal polyps (n = 77) Patients with rectosigmoid polyps (n = 59)
Sex, n (%)
 Male 49 (63.6) 37 (62.7)
 Female 28 (36.4) 22 (37.3)
Age, y   
 Mean ± SD 65.5 ± 14.4 61.9 ± 15.2
 Median (range) 67 (22–83) 66 (22–83)
  Polyp characteristics
  Polyps in the distal colorectum (n = 121) Polyps in the rectosigmoid (n = 79)
Location, n (%)
 Descending colon 42 (34.7)  
 Sigmoid 32 (26.5) 32 (40.5)
 Rectum 47 (38.8) 47 (59.5)
Histology, n (%)
 Adenoma 57 (47.1) 29 (36.7)
   Tubular 46 (38) 27 (34.2)
   Tubulovillous 7 (5.8) 2 (2.5)
   SSA 4 (3.3) 0 (0)
 Hyperplastic 63 (52.1) 50 (63.3)
 Other (Leiomyoma) 1 (0.8)  
Size, n (%)
  ≤ 3 mm 75 (62) 54 (68.4)
 4–5 mm 46 (38) 25 (31.6)
 median (mean), mm 3 (3.3) 3 (3.2)
  1. SSA, sessile serrated adenoma