Table 4.

Association of diabetes combined with obesity and of diabetes combined with low physical activity (inactivity) with risk of endometrial cancer

No diabetes
Diabetes
P for interaction
No. casesRR (95% CI)No. casesRR (95% CI)
BMI (kg/m2)*
    <301541.0 (reference)111.75 (0.93-3.30)
    ≥30432.49 (1.77-3.51)116.39 (3.38-12.06)0.25
Physical activity (MET/h)
    High1031.0 (reference)51.12 (0.45-2.75)
    Low§1001.09 (0.82-1.45)172.80 (1.62-4.85)0.002
  • * Adjusted for age (in months) and total physical activity (MET/h quartiles <38.8, 38.9-42.1, 42.2-45.8, 45.9+).

  • Adjusted for age (in months) and BMI (kg/m2, continuous).

  • The highest and middle tertiles of total physical activity combined.

  • § The lowest tertile of total physical activity (<39.8 MET/h).