Table 2.
Study population (of survey respondents who gave information on smoking status) by survey period, sex, and smoking status. Values are numbers of respondents (with row percentages)
| Survey period | Smoking status | Total | ||
|---|---|---|---|---|
| Never | Current | Former | ||
| No of responders in each survey period | ||||
| Men: | ||||
| 1963-71* | 1835 (13) | 10 218 (74) | 1744 (13) | 13 797 (100) |
| 1978-81 | 2196 (15) | 9088 (63) | 3139 (22) | 14 423 (100) |
| 1991-92 | 1879 (17) | 5781 (52) | 3427 (31) | 11 087 (100) |
| Women: | ||||
| 1963-71* | 20 957 (85) | 3274 (13) | 519 (2) | 24 750 (100) |
| 1978-81 | 19 555 (84) | 2536 (11) | 1077 (5) | 23 168 (100) |
| 1991-92 | 16 483 (84) | 1579 (8) | 1457 (8) | 19 519 (100) |
| Cumulative number of responders (all periods)† | ||||
| Men: | ||||
| Total | 3873 (14) | 16 318 (60) | 7120 (26) | 27 311 (100) |
| Started smoking at age <20 years | — | 4363 | 1479 | 5842 |
| Women: | ||||
| Total | 33 736 (83) | 4494 (11) | 2432 (6) | 40 662 (100) |
| Started smoking at age <20 years | — | 248 | 109 | 357 |
*Surveys were by mail except for 5531 men and 8549 women interviewed in clinics during the first survey period.
†People taking part in more than one survey period are counted only once and are classified by their most recent known smoking status. A further 2738 people were surveyed but did not provide information on smoking status.