Table 2.
Men | Women | |
---|---|---|
Subjects (%) | 6 253 (47.1) | 7 031 (52.9) |
Age the year 2000, mean (SD) | 41.1 (7.2) | 40.8 (7.3) |
Never-smokers (%) | 2 844 (45.5) | 3 194 (45.4) |
Ever-smokers (%) | 3 263 (52.2) | 3 670 (52.2) |
Unknown smoking habits (%) | 146 (2.3) | 167 (2.4) |
Not exposed (%) | 2 241 (35.9) | 3 372 (48.0) |
Exposed (%) | 3 721 (59.5) | 3 257 (46.3) |
Uncertain exposure (%) | 291 (4.7)a | 402 (5.7)b |
Asthma incidence/1000 p-years | 1.3 | 2.4 |
aThere were additional 449 men, who had at least one employment with uncertain exposure.
bThere were additional 337 women, who had at least one employment with uncertain exposure.