Table 1.
Demographic characteristics of the study participants (n = 3641).
| Characteristics | Frequency (n) | Percentages (%) |
|---|---|---|
| Sex | ||
| Female | 1745 | 47.93 |
| Male | 1766 | 48.50 |
| Missing | 130 | 3.57 |
| Type of house | ||
| Brick | 2895 | 83.72 |
| Mud | 73 | 2.11 |
| Corrugated iron | 304 | 8.35 |
| Combination | 102 | 2.80 |
| Other | 84 | 2.31 |
| Missing | 183 | 5.03 |
| Residential fuel type used for cooking/heating | ||
| Electricity | 3010 | 82.67 |
| Gas | 93 | 2.55 |
| Paraffin | 139 | 3.82 |
| Open fires | 113 | 3.10 |
| Missing | 286 | 7.85 |
| Vigorous physical activity per week | ||
| Never | 1088 | 29.88 |
| Once or twice per week | 1481 | 40.68 |
| Three times or more per week | 950 | 26.09 |
| Missing | 122 | 3.35 |
| Frequency of trucks passing near the residence on weekdays | ||
| Never | 556 | 15.27 |
| Seldom | 723 | 19.86 |
| Frequently | 491 | 13.49 |
| Always | 1761 | 48.37 |
| Missing | 110 | 3.02 |
| ETS exposure at home in the past 30 days | ||
| No | 1433 | 39.36 |
| Yes | 1747 | 47.98 |
| Missing | 461 | 12.66 |
| Do you smoke cigarettes? | ||
| No | 3386 | 93.00 |
| Yes | 151 | 4.15 |
| Missing | 104 | 2.86 |
| How often did you eat fast foods in the last 12 months? | ||
| Never or occasionally | 572 | 15.71 |
| Once or twice per week | 1795 | 49.30 |
| Three or more times per week | 1081 | 29.69 |
| Missing | 193 | 5.30 |