Table 2 Odds ratios for overweight/obesity according to education among unmarried women (n = 582)
| Â | Overweight/obesity | Model 1 | Model 2 | Model 3 |
|---|---|---|---|---|
% | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
Women’s educational attainment | ||||
  ≥ University | 7.6 | 1.00 | 1.00 | 1.00 |
 College | 10.9 | 1.15 (0.60–2.20) | 1.15 (0.59–2.23) | 1.18 (0.60–2.31) |
  ≤ High school | 25.3 | 3.08 (1.57–6.03) | 3.21 (1.59–6.51) | 3.04 (1.45–6.38) |
Work status | ||||
 Working | 11.1 | 1.00 | 1.00 | 1.00 |
 Not working | 19.3 | 1.92 (0.93–3.96) | 2.30 (1.06–5.00) | 2.10 (0.95–4.66) |
Equivalent income | ||||
 4th quartile (highest) | 10.5 | 1.00 | 1.00 | 1.00 |
 3rd quartile | 14.4 | 1.79 (0.85–3.75) | 1.61 (0.75–3.44) | 1.63 (0.75–3.53) |
 2nd quartile | 8.3 | 0.89 (0.39–2.06) | 0.62 (0.26–1.51) | 0.59 (0.24–1.45) |
 1st quartile | 13.6 | 1.39 (0.65–2.97) | 0.97 (0.44–2.17) | 1.02 (0.45–2.31) |
Dietary habits | ||||
 Good | 9.8 | 1.00 |  | 1.00 |
 Poor | 18.7 | 2.56 (1.47–4.47) |  | 2.41 (1.32–4.39) |
Smoking status | ||||
 Never-smoker | 11.2 | 1.00 |  | 1.00 |
 Ex-smoker | 10.1 | 0.81 (0.35–1.89) |  | 0.62 (0.25–1.52) |
 Current smoker | 16.7 | 1.39 (0.72–2.69) |  | 0.89 (0.43–1.85) |
Habitual exercise | ||||
  ≥ 1 day/week | 12.3 | 1.00 |  | 1.00 |
 Once/month | 10.9 | 0.99 (0.47–2.10) |  | 1.04 (0.48–2.27) |
 Seldom | 11.8 | 0.96 (0.55–1.68) |  | 0.86 (0.47–1.55) |