Table 3.
Body mass index in relation to incidence of lung cancer among 56,835 women in the Black Women’s Health Study, 1995–2011
| No. of Cases | Person-years | Age-adjusted | Multivariablea | |||
|---|---|---|---|---|---|---|
| HR | (95% CI) | HR | (95% CI) | |||
| All primary lung cancer | ||||||
| Body mass index (kg/m2) | ||||||
| <18.5 | 9 | 12,744 | 3.83 | (1.93–7.62) | 2.70 | (1.36–5.42) |
| 18.5–24.9 | 101 | 290,699 | 1.00 | 1.00 | ||
| 25.0–29.9 | 122 | 249,935 | 0.88 | (0.67–1.14) | 0.85 | (0.65–1.11) |
| 30+ | 91 | 235,733 | 0.70 | (0.53–0.94) | 0.69 | (0.52–0.93) |
| p for trend | <0.01 | <0.01 | ||||
| Adenocarcinoma only | ||||||
| Body mass index (kg/m2) | ||||||
| <18.5 | 2 | 12,734 | 2.69 | (0.64–11.26) | 2.14 | (0.51–9.08) |
| 18.5–24.9 | 33 | 290,617 | 1.00 | 1.00 | ||
| 25.0–29.9 | 46 | 249,846 | 1.01 | (0.65–1.59) | 1.00 | (0.63–1.57) |
| 30+ | 23 | 235,654 | 0.54 | (0.32–0.93) | 0.56 | (0.33–0.97) |
| p for trend | <0.01 | <0.01 | ||||
a
Adjusted for age, education, physical activity, alcohol consumption, parity, age at first birth, family history of lung cancer, geographic region, and pack-years of smoking.