Table 5.

Coffee consumption and endometrial cancer risk by BMI in the Multiethnic Cohort Study, 1993–2012a

Body massNo. ofCoffee consumption
indexcasesNone1–3 cups/month1–6 cups/week1 cup/day2–3 cups/day≥4 cups/dayPtrendPer cup
<30 kg/m25001.00 (ref.)0.94 (0.62–1.43)1.00 (0.70–1.41)0.95 (0.71–1.26)1.00 (0.75–1.34)0.82 (0.51–1.32)0.750.99 (0.92–1.07)
≥30 kg/m23111.00 (ref.)0.64 (0.38–1.07)0.87 (0.59–1.30)0.82 (0.57–1.17)0.76 (0.52–1.13)0.31 (0.14–0.72)0.040.87 (0.78–0.97)
  • aHR (95% CI). The following variables were included to rigorously control for the effects of smoking: smoking status, average number of cigarettes, squared average number of cigarettes, number of years smoked (time-dependent), and number of years since quitting (time-dependent). The models were further adjusted for age at cohort entry, education, alcohol intake, physical activity, history of diabetes, family history of corresponding cancer, and menopausal status and menopausal hormone therapy. Female participants who reported hysterectomy at baseline and those with missing or invalid BMI have been excluded.