| Overall frequency N (%) | Model results | p-value | ||
---|---|---|---|---|---|
Any respiratory illness n (%) | No respiratory illness n (%) | ||||
Does the adolescent smoke | No* | 226 (98) | 182 (99) | 44 (98) | 0.55 |
Yes | 3 (1) | 2 (1) | 1 (2) | Â | |
Presence of environmental tobacco smoke in the home | No* | 113 (48) | 88 (47) | 25 (53) | 0.47 |
Yes | 120 (52) | 98 (53) | 22 (47) | Â | |
Main fuel used for cooking | Electric* | 207 (90) | 130 (71) | 29 (62) | 0.31 |
Non-electric | 21 (9) | 54 (29) | 18 (38) | Â | |
Main fuel used for heating | Electric* | 159 (68) | 167 (92) | 40 (87) | 0.24 |
Non-electric | 72 (31) | 15 (8) | 6 (13) | Â | |
 |  |  | Mean (min - max) | Mean (min - max) |  |
Number of household members | – | – | 5 (1–16) | 5 (2–12) | 0.94 |
Number of years living in Secunda or eMbalenhle | – | – | 12 (1–16) | 10 (1–16) | 0.022 |