Results of the study of Slattery and colleagues57 and Lin and colleagues71 evaluating the interaction of body mass index (BMI) and hormone replacement therapy (HRT) among postmenopausal women with regard to the risk of colon cancer
| BMI (kg/m2) | |||||
|---|---|---|---|---|---|
| <23 | 23–24.9 | 25–26.9 | 27–29.9 | ⩾30 | |
| Relative risk—Slattery and colleagues57 | |||||
| HRT not used | 1.00 | 1.95 | 1.36 | 1.06 | 3.06 |
| HRT used | 1.00 | 0.79 | 1.02 | 1.84 | 1.25 |
| BMI (kg/m2) | |||||
| <23 | 23–24 | 25–27 | 28–30 | >30 | |
| Odds ratio—Lin and colleagues71 | |||||
| HRT not used | 1.00 | 1.09 | 1.19 | 1.06 | 1.07 |
| HRT used | 1.00 | 2.69 | 1.68 | 2.28 | 3.36 |