Table 3 The prevalence of self-reported rhinitis ever along with crude and adjusted odd ratios
Variable | Totala | Rhinitis evera (%) | Crude OR (95 % CI) | P | Adjusted OR (95 % CI)b | P |
|---|---|---|---|---|---|---|
Mode of transport to school | ||||||
Walk | 1728 | 51.7 | 1 | 1 | ||
Taxi/Bus | 708 | 49.7 | 0.92 (0.77–1.10) | 0.400 | 0.99 (0.81–1.21) | 0.965 |
Motor car | 683 | 53.9 | 1.08 (0.90–1.29) | 0.358 | 1.15 (0.93–1.42) | 0.186 |
Combination | 201 | 60.8 | 1.42 (1.05–1.92) | 0.019 | 1.45 (1.04–2.04) | 0.028 |
Train | 100 | 53.0 | 1.05 (0.70–1.58) | 0.798 | 1.13 (0.71–1.81) | 0.582 |
Frequency of trucks passing near homes on weekdays | ||||||
Never | 563 | 47.3 | 1 | 1 | ||
Seldom | 1033 | 53.1 | 1.26 (1.02–1.55) | 0.027 | 1.16 (0.92–1.56) | 0.197 |
Frequently through the day | 580 | 49.3 | 1.09 (0.86–1.37) | 0.451 | 1.03 (0.79–1.34) | 0.791 |
Almost all day | 1212 | 55.9 | 1.43 (1.16–1.75) | 0.001 | 1.46 (1.16–1.84) | 0.001 |
Being born in Tembisa/Kempton park areas | ||||||
No | 1609 | 49.3 | 1 | 1 | ||
Yes | 1812 | 54.9 | 1.28 (1.11–1.47) | 0.000 | 1.22 (1.05–1.43) | 0.008 |
Vigorous physical activity | ||||||
Never or occasionally | 984 | 49.1 | 1 | 1 | ||
Once or twice per week | 1417 | 54.8 | 1.26 (1.07–1.48) | 0.005 | 1.27 (1.06–1.53) | 0.008 |
3 or more times per week | 983 | 52.1 | 1.12 (0.94–1.34) | 0.193 | 1.08 (0.88–1.31) | 0.447 |
ETS exposure at home in the past 30 days | ||||||
No | 1460 | 51.3 | 1 | 1 | ||
Yes | 1452 | 55.7 | 1.19 (1.03–1.38) | 0.017 | 1.15 (0.99–1.34) | 0.056 |
Residential heating fuel type most frequently used | ||||||
Electricity | 2041 | 51.4 | 1 | 1 | ||
Gas | 426 | 56.3 | 1.23 (0.99–1.52) | 0.055 | 1.23 (0.98–1.56) | 0.070 |
Paraffin | 631 | 52.9 | 1.07 (0.87–1.31) | 0.487 | 1.04 (0.84–1.28) | 0.694 |
Open fire | 270 | 51.1 | 0.99 (0.76–1.28) | 0.973 | 1.07 (0.80–1.14) | 0.621 |