| Male | Female | Total | |
---|---|---|---|---|
 | n | n | n | % |
Self reported smoking status | Â | Â | Â | Â |
   Smoker- daily or occasional | 108 | 71 | 179 | 59 |
   Non-smoker | 59 | 66 | 125 | 41 |
Time since last cigarette* | Â | Â | Â | Â |
   < 4 hours | 99 | 66 | 165 | 92 |
   4-8 hours | 8 | 5 | 13 | 7 |
   8-12 hours | 1 | 0 | 1 | 1 |
Exposure to passive smoke in last 24 hours | Â | Â | Â | Â |
   Exposure | 138 | 99 | 237 | 78 |
   No exposure | 28 | 38 | 66 | 22 |
   Missing | 1 | 0 | 1 | 0.3 |
Heaviness of smoking index* | Â | Â | Â | Â |
   1-2 (Low dependence) | 39 | 26 | 65 | 36 |
   3-4 | 45 | 35 | 80 | 45 |
   5-6 (High dependence) | 24 | 10 | 34 | 19 |