Smoking Habits of Participants
| Percentage | ||||
| Smoking status | Parameter | Data | Per category | Total |
| Never smoked | 86 | |||
| Former smoker | Number of cigarettes per day | 1–5 | 55 | 11 |
| 5–10 | 36 | |||
| More than 10 | 9 | |||
| Time since quitting | <6 mo | 0 | ||
| 6–12 mo | 9 | |||
| 1–2 y(s) | 27 | |||
| 3–5 y | 0 | |||
| >5 y | 64 | |||
| Current smoker | Number of cigarettes per day | 1–5 | 67 | 3 |
| 5–10 | 33 | |||
| More than 10 | 0 | |||
| Number of years of smoking | <1 y | 0 | ||
| 1–5 y(s) | 33 | |||
| 5–10 y | 67 | |||
| >10 y | 0 |