Relationship of exercise induced bronchospasm (EIB10) to selected demographic, host and environmental characteristics
| Characteristic | Odds ratio (95% confidence interval) | ||
|---|---|---|---|
| Undjusted | Adjusted for area of residence | Adjusted for all other characteristics in the table | |
| Sex6-150 | 1.00 (0.73 to 1.36) | 1.04 (0.76 to 1.43) | 1.13 (0.77 to 1.65) |
| Age | 0.75 (0.63 to 0.89) | 0.82 (0.68 to 0.99) | 0.84 (0.67 to 1.06) |
| Breast fed for less than 6 months | 1.27 (0.78 to 2.05) | 1.09 (0.67 to 1.79) | 1.07 (0.63 to 1.79) |
| Family history of asthma symptoms | 1.61 (1.09 to 2.36) | 1.40 (0.95 to 2.08) | 1.50 (0.99 to 2.28) |
| Animal in the homestead | 0.62 (0.45 to 0.85) | 0.74 (0.52 to 1.04) | 0.76 (0.51 to 1.14) |
| Ventilation (windows/room) | 1.55 (1.08 to 2.22) | 1.36 (0.94 to 1.97) | 1.06 (0.68 to 1.65) |
| Cooking fuel | |||
| Biomass | 0.58 (0.37 to 0.90) | 0.73 (0.46 to 1.15) | 0.64 (0.37 to 1.11) |
| Kerosene | 1.50 (1.07 to 2.10) | 1.80 (1.27 to 2.55) | 1.17 (0.74 to 1.84) |
| Parental education (years in school) | 1.06 (1.01 to 1.11) | 1.02 (0.97 to 1.07) | 1.01 (0.95 to 1.08) |
| Exposure to motor vehicle fumes on the way to school | |||
| Frequently | 2.05 (1.28 to 3.26) | 1.27 (0.72 to 2.27) | 1.18 (0.62 to 2.25) |
| Sometimes | 1.97 (1.22 to 3.17) | 1.60 (0.97 to 2.64) | 1.31 (0.74 to 2.31) |
| Rarely | Reference | Reference | Reference |
| Area of residence (urban vs rural) | 1.96 (1.41 to 2.72) | — | 1.21 (0.69 to 2.11) |
↵6-150 Odds ratios calculated using boys as reference.