Table 6.

Interaction of BMI and energy intake with physical activity, by right and left colon cancers

Total activityRight colon
Left colon
BMI <25
BMI ≥25-<30
BMI ≥30
BMI <25
BMI ≥25-<30
BMI≥30
No. casesMultivariate* riskNo. casesMultivariate* riskNo. casesMultivariate* riskNo. casesMultivariate* riskNo. casesMultivariate* riskNo. casesMultivariate* risk
Inactive340.64 (0.34-1.20)280.61 (0.32-1.16)141.0260.98 (0.42-2.30)321.37 (0.60-3.13)71.0
Moderately inactive730.50 (0.28-0.90)630.54 (0.30-0.98)230.57 (0.29-1.12)641.02 (0.46-2.25)701.41 (0.64-3.07)311.47 (0.64-3.39)
Moderately active and active730.38 (0.21-0.68)820.43 (0.24-0.77)390.56 (0.30-1.05)1021.25 (0.58-2.70)1041.18 (0.56-2.54)551.57 (0.70-3.45)
Pinteraction0.030.39
<1,827 kcal/d≥1,827-<2,351 kcal/d>2,351 kcal/d<1,827 kcal/d≥1,827-<2,351 kcal/d>2,351 kcal/d
Inactive261.54 (0.83-2.90)311.72 (0.96-3.08)191.0120.64 (0.30-1.33)301.32 (0.74-2.35)231.0
Moderately inactive551.07 (0.61-1.91)641.30 (0.76-2.23)400.94 (0.54-1.63)540.96 (0.55-1.68)651.27 (0.76-2.13)460.99 (0.59-1.67)
Moderately active and active510.69 (0.39-1.24)620.86 (0.50-1.48)811.15 (0.69-1.92)811.01 (0.59-1.72)821.08 (0.65-1.78)981.18 (0.73-1.92)
Pinteraction0.0030.45
  • * Multivariate risk models: BMI interaction adjusted for energy intake, fiber, alcohol, smoking, and education; energy interaction also adjusted for height, weight, alcohol, smoking, fiber, and education.