Table 1 Population characteristics of the 8850 Telemark study respondents who had never smoked
All participants N = 8850 | Female N = 4944 | Male N = 3906 | |
|---|---|---|---|
N (%) | N (%) | N (%) | |
Age (years) | |||
16–30 | 3575 (40.4) | 1992 (40.3) | 1583 (40.5) |
31–40 | 2132 (24.1) | 1252 (25.3) | 880 (22.5) |
41–50 | 3143 (35.5) | 1700 (34.4) | 1443 (36.9) |
Education | |||
Elementary school and additional 1–2 years (low) | 1430 (16.2) | 759 (15.4) | 671 (17.2) |
Upper secondary or certificate (medium) | 3168 (35.1) | 1536 (31.1) | 1632 (41.8) |
University (≥4 years) (high) | 3905 (44.1) | 2483 (50.2) | 1422 (36.4) |
Other or missing | 347 (3.9) | 166 (3.4) | 181 (4.6) |
Parental smoking during childhood | 4557 (51.5) | 2558 (51.7) | 1999 (51.2) |
Occupational exposure to VGDFa | 3443 (38.9) | 1313 (26.6) | 2130 (54.5) |
Exposure to mould or damp at homeb | 330 (3.7) | 200 (4.0) | 130 (3.3) |