(b).
| Independent variable | Dressing | Squatting | ||||
|---|---|---|---|---|---|---|
| Coefficient | Odds ratio (95% CI) | p value | Coefficient | Odds ratio (95% CI) | p value | |
| Age (years) | 0.09 | 1.09 (1.09–1.10) | <0.001 | 0.08 | 1.08 (1.08–1.09) | <0.001 |
| Female versus male | −0.28 | 0.76 (0.68–0.83) | <0.001 | 0.30 | 1.36 (1.29–1.43) | <0.001 |
| No education versus any education | 0.29 | 1.34 (1.20–1.49) | <0.001 | 0.12 | 1.13 (1.06–1.20) | <0.001 |
| Inadequate versus adequate income | 0.34 | 1.41 (1.29–1.54) | <0.001 | 0.23 | 1.26 (1.20–1.32) | <0.001 |
| Married (couple) versus unmarried | −0.72 | 0.49 (0.39–0.62) | <0.001 | −0.16 | 0.85 (0.74–0.97) | 0.015 |
| Married (not together) versus unmarried | −0.48 | 0.62 (0.49–0.78) | <0.001 | −0.09 | 0.92 (0.80–1.05) | 0.196 |
| Living with others versus alone | 1.03 | 2.79 (2.21–3.52) | <0.001 | 0.37 | 1.45 (1.32–1.59) | <0.001 |
| Did not work in the past 7 days | 1.80 | 6.03 (4.88–7.45) | <0.001 | 0.96 | 2.61 (2.44–2.80) | <0.001 |
| Any chronic disease∗ | 1.23 | 3.41 (3.10–3.76) | <0.001 | 0.73 | 2.07 (1.97–2.17) | <0.001 |
| Rural versus urban | −0.18 | 0.83 (0.75–0.93) | 0.001 | −0.18 | 0.84 (0.79–0.88) | <0.001 |
| Bangkok versus South | −0.01 | 0.99 (0.83–1.18) | 0.887 | 0.05 | 1.05 (0.95–1.16) | 0.360 |
| Central versus South | −0.04 | 0.97 (0.84–1.11) | 0.633 | 0.02 | 1.02 (0.94–1.10) | 0.645 |
| North versus South | −0.34 | 0.71 (0.61–0.83) | <0.001 | −0.06 | 0.94 (0.87–1.02) | 0.165 |
| Northeast versus South | −0.34 | 0.71 (0.61–0.83) | <0.001 | −0.38 | 0.69 (0.63–0.74) | <0.001 |
| Year 2007 versus 2002 | 0.33 | 1.38 (1.28–1.57) | <0.001 | 0.73 | 2.07 (1.93–2.22) | <0.001 |
| Year 2011 versus 2002 | 0.14 | 1.15 (1.02–1.30) | 0.023 | 0.72 | 2.05 (1.91–2.19) | <0.001 |
| Constant | −12.53 | <0.001 | −9.65 | <0.001 | ||