| Frequency distribution, % | Crude OR | Adjusted OR | (95% CI) | p Value for trend | |
| Income (Baht) | |||||
| ⩽7000 | 42 | 1 | 1 | – | 0.003 |
| 7001–10 000 | 23 | 1.23 | 0.95 | (0.90 to 1.01) | |
| 10 001–20 000 | 24 | 2.21 | 1.12 | (1.06 to 1.19) | |
| ⩾20 000 | 11 | 3.17 | 1.10 | (1.01 to 1.18) | |
| (100%) | |||||
| Education | |||||
| ⩽High school | 49 | 1 | 1 | – | NS* |
| Diploma | 27 | 0.88 | 1.01 | (0.96 to 1.06) | |
| University | 24 | 1.09 | 0.96 | (0.91 to 1.01) | |
| (100%) | |||||
| Marital status | |||||
| Single | 43 | 1 | 1 | – | <0.001 |
| Partnered | 57 | 2.5 | 1.31 | (1.25 to 1.37) | |
| (100%) | |||||
| Chinese ethnicity | |||||
| No | 72 | 1 | 1 | – | <0.001 |
| Yes | 28 | 1.3 | 1.13 | (1.08 to 1.18) | |
| (100%) | |||||
| Region | |||||
| Bangkok | 17 | 1 | 1 | – | –‡ |
| Central | 24 | 0.95 | 1.04 | (0.98 to 1.11) | |
| North | 18 | 0.92 | 0.95 | (0.88 to 1.02) | |
| North-East | 21 | 0.91 | 0.90 | (0.84 to 0.96) | |
| East | 6 | 0.85 | 0.90 | (0.82 to 0.99) | |
| South | 13 | 0.82 | 0.91 | (0.84 to 0.99) | |
| (100%) | |||||
| Urbanisation status§ | |||||
| Rural–rural (RR) | 44 | 1 | 1 | – | <0.001 |
| Rural–urban (RU) | 32 | 1.07 | 0.94 | (0.89 to 0.99) | |
| Urban–rural (UR) | 4 | 1.68 | 1.42 | (1.29 to 1.55) | |
| Urban–urban (UU) | 20 | 1.61 | 1.47 | (1.38 to 1.55) | |
| (100%) |
†Risk of obesity expressed as odds ratios (ORs). Adjusted ORs were derived from a logistic regression model which included age, sex and all six sociodemographic factors.
*NS, not significant.
‡p value for trend not computed—no natural ordering.
§Location of residence (rural, R, or urban, U) when 10–12 years old and in 2005. For example, RU is rural residence when 10–12 years old and urban in 2005.