Mean number of cigarettes per day at first and last examinations in moderate smokers, reducers and heavy smokers, by sex
| Moderate smokers | Reducers | Heavy smokers | |
|---|---|---|---|
| Table 4 shows the number of participants in each category. | |||
| Men | |||
| First examination | 9.2 | 22.9 | 18.8 |
| Last examination | 10.6 | 9.7 | 18.3 |
| Women | |||
| First examination | 8.1 | 19.5 | 17.0 |
| Last examination | 9.2 | 8.6 | 16.4 |