Table 3.
Associated factors of metabolic syndrome in multivariate logistic regression analysis
| Variable | Odds ratio (95%CI) | P |
|---|---|---|
| Residence |
|
|
| Rural |
1.0 |
|
| Urban |
2.46 (1.61–3.75) |
< 0.0001 |
| Gender |
|
|
| Men |
1.0 |
|
| Women |
0.68 (0.43–1.09) |
0.111 |
| Age (year) |
1.07 (1.05–1.09) |
< 0.0001 |
| Body mass index (kg/m2) |
1.31 (1.25–1.37) |
< 0.0001 |
| Marital status |
|
|
| Married |
1.0 |
|
| Never |
2.14 (1.06–4.31) |
0.034 |
| Widowed |
0.96 (0.60–1.53) |
0.868 |
| Others |
1.23 (0.49–3.14) |
0.659 |
| Education level |
|
|
| Elementary |
1.0 |
|
| Intermediate |
0.71 (0.49–1.04) |
0.075 |
| Secondary |
0.60 (0.36–1.02) |
0.058 |
| Post–secondary |
0.83 (0.50–1.39) |
0.487 |
| Heavy occupation |
|
|
| Yes |
1.0 |
|
| No |
0.95 (0.67–1.34 |
0.759 |
| Income level |
|
|
| < 25 percentiles |
1.0 |
|
| 25– < 50 percentiles |
1.02 (0.73–1.42) |
0.925 |
| 50– < 75 percentiles |
1.04 (0.74–1.46) |
0.836 |
| ≥75 percentiles |
0.91 (0.64–1.29) |
0.598 |
| Alcohol consumption |
|
|
| None |
1.0 |
|
| <1 drink/mo |
0.67 (0.38–1.16) |
0.151 |
| ≥ 1 drink/mo to < 1 drink/wk |
1.18 (0.70–1.98) |
0.544 |
| 1 drink/wk to ≤ 1 drink/d |
0.85 (0.52–1.40) |
0.532 |
| ≥ 2 drink/d |
1.29 (0.77–2.17) |
0.338 |
| Smoking |
|
|
| None |
1.0 |
|
| Current smoker |
0.67 (0.38–1.13) |
0.131 |
| Ex–smoker |
1.23 (0.75–2.04) |
0.416 |
| Watching TV/day |
|
|
| ≤ 3 hours |
1.0 |
|
| > 3 hours |
1.31 (0.79–2.16) |
0.299 |
| Sitting time/day |
|
|
| ≤ 4 hours |
1.0 |
|
| > 4 hours |
0.89 (0.69–1.14) |
0.342 |
| Sleeping time/day |
|
|
| 6-7 h |
1.0 |
|
| <6 h |
1.01 (0.74–1.40) |
0.939 |
| ≥8 h |
1.03 (0.77–1.37) |
0.870 |
| Siesta time/day (per 15 min) | 1.08 (1.02–1.15) | 0.015 |
Educational level was categorized in four groups, by number of years of schooling: elementary level (≤5 years), intermediate level (6–9 years), secondary level (10–12 years), and post–secondary level (>12 years). Occupation was categorized as heavy occupation (farmer and manual worker) or none heavy occupation (office clerks, teacher, retired worker, and house worker). One drink was defined as a 50–ml cup of rice wine at about 30%.
OR and P values were adjusted by all variables in the table.