Table 1 Participant characteristics (N = 3024)
Characteristic | Mean ± SD or n/N (%) a |
|---|---|
Gender | |
 Male | 1859/2998 (62.0) |
 Female | 1139/2998 (38.0) |
Age group | |
 10–19 | 6/2990 (0.2) |
 20–29 | 352/2990 (11.8) |
 30–39 | 807/2990 (27.0) |
 40–49 | 794/2990 (26.6) |
 50–59 | 645/2990 (21.6) |
  ≥ 60 | 386/2990 (12.9) |
Job categories | |
 Managerial | 656/2947 (22.3) |
 Professional | 139/2947 (4.7) |
 Technical | 415/2947 (14.1) |
 Sales | 363/2947 (12.3) |
 Planning/administrative | 1223/2947 (41.5) |
 Secretarial/clerical | 6/2947 (0.2) |
 Other | 145/2947 (4.9) |
Smoking status | |
 Never | 1286/3006 (42.8) |
 Former | 714/3006 (23.8) |
 Current/sometime | 99/3006 (3.3) |
 Current/everyday | 907/3006 (30.2) |
Mean year working in the building (n = 2997) | 7.6 ± 7.1 |