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. Author manuscript; available in PMC: 2013 Jun 5.
Published in final edited form as: Gastroenterology. 2008 Feb 17;134(5):1311–1315. doi: 10.1053/j.gastro.2008.02.032

Table 1.

Demographics of subjects undergoing screening colonoscopy

Age 40-49
N=553
Age 50-59
N=352
Age Median=45.58
Range=40.13 – 49.99
Median=53.71
Range=50.03-59.74
Gender
 Male 417 (75%) 271 (77%)
 Female 136 (25%) 81 (23%)
Race
 Caucasian 393 (71%) 258 (73%)
 Non-Caucasian 160 (29%) 94 (27%)
Body Size
 Normal weight 191 (36%) 110 (33%)
 Overweight 258 (49%) 154 (47%)
 Obese 79 (15%) 68 (21%)