Table 1.
Sample demographics
| Women | Men | |
| Number* (%) | 324 (55.9) | 256 (44.1) |
| Age (mean ±SD) | 48.9 (8.3) | 49.5 (8.8) |
| Years of work (mean ±SD) | 24.1 (7.2) | 24.7 (6.8) |
| Years of shift work (mean ±SD) | 23.9 (5.1) | 24.4 (4.8) |
| Position Temporary No (%) Permanent No (%) |
61 (18.8) 263 (81.2) |
51 (19.9) 205 (80.1) |
| Smoking status Current smoker No (%) Former smoker No (%) |
51 (15.7) 15 (4.6) |
42 (16.4) 12 (4.7) |
| Frequency of alcohol consumption ≤Once a month No (%) 2–4 times a month No (%) >Once a week No (%) |
89 (27.5) 105 (32.4) 130 (40.1) |
62 (24.2) 85 (33.2) 109 (42.6) |
| Number of children None No (%) 1-2 No (%) ≥3 No (%) |
95 (29.3) 202 (62.3) 27 (8.3) |
78 (30.5) 159 (62.1) 19 (7.4) |
* Entire group No. 580 nurses