Table 1.

Selected descriptive characteristics of adenoma cases and adenoma-free controls

VariableCases (n = 239)Controls (n = 517)P
Mean (SE) age59.7 (0.7)54.1 (0.5)0.001
White (%)77800.49
Male (%)54360.001
Family history (%)19260.06
Mean (SE) BMI28.3 (0.4)27.6 (0.3)0.15
Mean (SE) WHR0.97 (0.01)0.95 (0.01)0.004
Diabetes (% yes)19120.01
Mean (SE) dietary fat (g/d)61.6 (1.9)58.3 (1.3)0.16
Mean (SE) alcohol (g/d)5.9 (0.7)5.1 (0.5)0.44
Smoking
    Current (%)16190.06
    Former (%)3930
    Never (%)4550
Mean (SE) monthly NSAID use in the past 5 y9.0 (1.4)13.2 (1.3)0.02
Mean (SE) total daily calcium (mg)887 (36)972 (30)0.07
Apoptosis (no. labeled cells; SE)2.47 (0.04)2.95 (0.04)0.001
Insulin (SE), microunits/mL11.4 (1.2)9.8 (0.7)0.25
Glucose115.7 (4.0)111.6 (2.8)0.42
IGF-I (SE), ng/mL121.4 (4.8)130.7 (3.9)0.13
IGF-II (SE), ng/mL527.7 (14.0)548.6 (10.2)0.25
IGFBP-3 (SE), ng/mL3,177 (80)3,255 (51)0.41