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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Am J Gastroenterol. 2010 Mar 16;105(8):1746–1752. doi: 10.1038/ajg.2010.107

Table 1.

Cohort Characteristics of patients without polyps at baseline

Baseline Characteristic All Patients N=1441 Interval Neoplasia N=49 No Interval Neoplasia N=255 p value (neoplasia v. no neoplasia)

Mean follow-up, yr (sd) n/a 4.8 (0.6) 4.8 (0.7) 0.67

Mean Age, yr (sd) 62.7 (7.3) 63.8 (6.8) 62.4 (7.1) 0.21

Race, N (%)
 White 1202 (83.4) 42 (85.7) 211 (82.8)
 Other 239 (16.6) 7 (14.3) 44 (17.7) 0.61

Gender, N (%)
 Male 1377 (95.6) 48 (98.0) 234 (91.8)
 Female 64 (4.4) 1 (2.0) 21 (8.2) 0.22

Family History, N (%) 172 (11.9) 12 (24.5) 50 (19.6) 0.44

Current Smoker, N (%) 262 (18.2) 8 (16.3) 30 (11.8) 0.38

Current Alcohol, N (%) 587 (40.8) 21 (42.9) 106 (41.6) 0.87

Mean Body Mass Index (sd) 29.3 (5.2) 30.9 (6.1) 29.6 (5.5) 0.14

Mean Physical Activity Index (sd) 36.2 (8.7) 38.4 (9.9) 35.9 (8.2) 0.10

Diabetes, N (%) 289 (20.1) 13 (26.5) 41 (16.1) 0.10

Daily NSAID Use, N (%) 798 (55.4) 25 (51.0) 142 (55.7) 0.55

Good Prep Quality at Baseline, N (%) 1201 (83.4) 41 (83.7) 215 (84.3) 0.88