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Table 2 Polyp prevalence according to location and size by colonoscopy

From: Age-specific prevalence of serrated lesions and their subtypes by screening colonoscopy: a retrospective study

Polyp histology

Subjects

Location (%)

Size

 

10358/28544

Proximal (58.2%)

Distal (41.8%)

≤9 mm

10-20 mm

>20 mm

Adenoma

7830 (27.4%)

5150 (65.8%)

4904 (62.6%)

7745 (98.9%)

311 (4.0%)

29 (0.4%)

Tubular, low grade

7749 (27.1%)

5139 (66.3%)

4888 (63.1%)

7736 (99.8%)

302 (3.9%)

20 (0.3%)

Tubular, high grade

19 (0.1%)

16 (84.2%)

14 (73.7%)

19 (100%)

1 (5.3%)

1 (5.3%)

Villous/tubulovillous

11 (0.03%)

8 (72.7%)

9 (81.8%)

10 (90.9%)

5 (45.5%)

0

Adenocarcinoma

51 (0.2%)

31 (60.8%)

42 (82.4%)

35 (68.6%)

21 (41.2%)

19 (37.3%)

Serrated lesions

4312 (15.1%)

2241 (52.0%)

3444 (79.9%)

4309 (99.9%)

166 (3.8%)

9 (0.2%)

Hyperplastic

4187 (14.7%)

2141 (51.1%)

3395 (81.1%)

4185 (99.9%)

162 (3.9%)

9 (0.2%)

Sessile serrated adenoma

143 (0.5%)

123 (86.0%)

66 (46.2%)

142 (99.3%)

9 (6.3%)

0

Traditional serrated adenoma

17 (0.1%)

10 (58.8%)

14 (82.4%)

17(100%)

2 (11.8%)

0

Carcinoid

26 (0.1%)

4 (15.4%)

25 (96.2%)

24 (92.3%)

1 (3.8%)

1 (3.8%)