Table 1.

Selected characteristics of colorectal adenoma cases and controls, DHS, 1998 to 2002

CharacteristicsCases (n = 242)Controls (n = 631)P *
No.%No.%
Age (y)
    30–494518.617327.5
    50–6412551.733553.2
    ≥657229.812219.40.001
    Median age5854
Sex
    Male14459.525039.6
    Female9840.538160.4<0.001
Regular use of NSAIDs
    Yes10045.332355.3
    No12154.826144.70.011
Smoking status
    Never9543.429951.2
    Past smokers8840.220835.6
    Current smokers3616.47713.20.13
BMI (kg/m2)
    <258033.624840.6
    25–29.99037.821334.9
    ≥306828.615024.60.131
    Median BMI26.8426.15
Abdominal obesity
    Normal3419.213125.8
    Level 14726.611622.9
    Level 29654.226051.30.187
Comorbidity
    Yes14465.233657.6
    No7734.824742.40.052
Physical activity (average MET-min/d)
    1st tertile (<2,400)7639.817532.5
    2nd tertile (2,400–15,269)6534.018334.0
    3rd tertile (≥15,270)5026.218033.50.104
    Median physical activity2,6702,973
Total energy intake (kcal/d)
    1st tertile (1,389.11)6129.518333.3
    2nd tertile (1,389.11–1,935.63)6430.918333.3
    3rd tertile (≥1,935.64)8239.618433.50.279
    Median energy intake1,757.721,598.18
Total fat intake (g/d)
    1st tertile (47.05)6430.918333.3
    2nd tertile (47.05–72.88)6029.018333.3
    3rd tertile (≥72.89)8340.118433.50.223
    Median fat intake63.8559.57
  • * P values are based on χ2 statistics.

  • Defined based on waist circumference. In women, <80 (cm) defined as normal, 80 to 87.9 as action level 1, and ≥88 as action level 2 abdominal obesity. In men, <94 defined as normal, 94 to 101.9 as action level 1, and ≥102 as action level 2 abdominal obesity.

  • Defined as presence of arthritis, diabetes, hypertension, or heart attack.