At the time you started smoking, did you know the side effects of smoking?
| Yes | No | |||
|---|---|---|---|---|
| N | Per cent | N | Per cent | |
| Gender | ||||
| Male | 105 | 77 | 32 | 23 |
| Female | 22 | 73 | 8 | 27 |
| Age | ||||
| <35 | 90 | 86 | 15 | 14 |
| ≥35 | 38 | 62 | 24 | 38 |
| Language | ||||
| Mandarin | 72 | 77 | 21 | 23 |
| Cantonese | 56 | 76 | 18 | 24 |
| Education level | ||||
| High school under | 61 | 70 | 26 | 30 |
| University degree and above | 67 | 84 | 13 | 16 |