Table 3.
Odds ratios (95% confidence intervals) for underweight and overweight/obese BMI for women and men
| Underweight BMI | Overweight/Obese BMI | |||||
|---|---|---|---|---|---|---|
| % (n) | OR (95% CI) | % (n) | OR (95% CI) | |||
| Minimally adjusteda | Additionally adjustedb | Minimally adjusteda | Additionally adjustedb | |||
| Women | ||||||
| Heterosexual (n = 50 463) | 2.1 (1080) | (Reference) | (Reference) | 57.0 (28 783) | (Reference) | (Reference) |
| Lesbian (n = 452) | 2.4 (11) | 1.39 (0.75, 2.60) | 1.29 (0.69, 2.40) | 59.3 (268) | 1.36 (1.12, 1.65) | 1.41 (1.16, 1.72) |
| Bisexual (n = 530) | 3.0 (16) | 1.54 (0.75, 3.18) | 1.22 (0.63, 2.39) | 54.2 (287) | 1.26 (1.05, 1.50) | 1.24 (1.03, 1.48) |
| Other (n = 398) | 3.0 (12) | 2.45 (1.35, 4.43) | 1.95 (1.07, 3.56) | 65.8 (262) | 1.38 (1.05, 1.82) | 1.25 (0.96, 1.62) |
| Men | ||||||
| Heterosexual (n = 40 323) | 1.2 (474) | (Reference) | (Reference) | 67.5 (27 219) | (Reference) | (Reference) |
| Gay (n = 643) | 3.4 (22) | 3.27 (2.07, 5.15) | 3.12 (1.83, 5.32) | 52.4 (337) | 0.64 (0.54, 0.75) | 0.72 (0.61, 0.85) |
| Bisexual (n = 343) | 2.9 (10) | 3.07 (1.58, 5.98) | 2.30 (1.17, 4.52) | 60.3 (207) | 0.82 (0.65, 1.03) | 0.92 (0.73, 1.17) |
| Other (n = 277) | 3.2 (9) | 4.92 (2.38, 10.16) | 3.95 (1.85, 8.42) | 67.9 (188) | 0.86 (0.66, 1.12) | 0.99 (0.76, 1.30) |
Notes: Percentages shown are the percentage of participants of each sexual orientation identity with BMI values categorized as either underweight, or overweight or obese. Underweight BMI is defined as a BMI value < 18.5 kg/m2. Overweight BMI is defined as a BMI value in the range 25–29.99 kg/m2. Obese BMI is defined as a BMI value ≥30 kg/m2. aMinimally adjusted for age. bAdditionally adjusted for ethnic minority status, educational attainment, cigarette smoking, longstanding illness/disability and relationship status.