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Table 1 Patient demographics by polyp size

From: Determinants of polyp Size in patients undergoing screening colonoscopy

  Polyp Size  
  0 - 5 mm > 5 - 9 mm > 9 - 15 mm > 15 mm Total
  n (%) n (%) N (%) n (%) n
All Subjects 48947 (59.2) 19422 (23.5) 11240 (13.6) 3032 ( 3.7) 82641
Age          
< 50 3097 (63.4) 1073 (22.0) 587 (12.0) 125 ( 2.6) 4882
50-59 22859 (61.8) 8433 (22.8) 4613 (12.5) 1081 ( 2.9) 36986
60-69 14913 (57.3) 6259 (24.1) 3809 (14.6) 1035 ( 4.0) 26016
70-79 6991 (55.0) 3149 (24.8) 1905 (15.0) 658 ( 5.2) 12703
80+ 1087 (52.9) 508 (24.7) 326 (15.9) 133 ( 6.5) 2054
Gender          
Male 28002 (57.9) 11502 (23.8) 6982 (14.4) 1909 ( 2.3) 48395
Female 20945 (61.2) 7920 (23.1) 4258 (12.4) 1123 ( 3.3) 34246
Site          
Academic 4864 (64.4) 1506 (19.9) 928 (12.3) 257 ( 3.4) 7555
Community/HMO 38503 (58.4) 15909 (24.1) 9019 (13.7) 2491 ( 3.8) 65922
VA/Military 5580 (60.9) 2007 (21.9) 1293 (14.1) 284 ( 3.1) 9164
Race          
White 46601 (59.5) 18436 (23.5) 10506 (13.4) 2809 ( 3.6) 78352
Black 2346 (54.7) 986 (23.0) 734 (17.1) 223 ( 5.2) 4289
Location          
Proximal Colon 20013 (55.6) 9266 (25.7) 5198 (14.4) 1524 ( 4.2) 36001
Distal Colon and, Rectum 28934 (62.0) 10156 (21.8) 6042 (13.0) 1508 ( 3.2) 46640
Number of polyps          
Single 38027 (69.1) 10676 (19.4) 5057 ( 9.2) 1295 ( 2.4) 55055
Multiple 10920 (39.6) 8746 (31.7) 6183 (22.4) 1737 ( 6.3) 27586
Family history          
Negative 37015 (59.1) 14669 (23.4) 8642 (13.8) 2322 ( 3.7) 62648
Positive 11932 (59.7) 4753 (23.8) 2598 (13.0) 710 ( 3.6) 19993
  1. *Numbers in brackets = percent of row total.