Figure 1.

Odds ratios for oral cavity/pharyngeal cancer (section A, top and bottom panels) and laryngeal cancer (section B, top and bottom panels) within categories of body mass index (BMI; weight (kg)/height² (m²)), by pack-years of cigarette smoking (relative to never smoking) and by number of cigarettes smoked per day (relative to 1–19 cigarettes/day). ▪, BMI <18.5; •, BMI 18.5–24.9; ▴, BMI 25.0–29.9; ▾, BMI ≥30. Odds ratios were adjusted for sex, study/center, age, education, drink-years, drinks/day, BMI, and the complementary smoking factor, cigarettes/day or pack-years. Data were pooled data obtained from the International Head and Neck Cancer Epidemiology (INHANCE) Consortium and were limited to never smokers and current smokers of cigarettes only.