Table 1.
Characteristics of participants in study
| 2001 | 2003 | 2005 | |
| Age in years a | 41.6 (40.4–42.8) | 42.2 (40.7–43.6) | 44.7 (44.0–45.3) |
| Female sex b | 77.9 (72.8–83.0%) | 70.8 (65.4–73.2%) | 76.8 (74.0–79.6%) |
| Lives with partner b | 74.0 (68.2–79.8 %) | 74.9 (69.4–80.4%) | 64.7 (61.5–67.9%) |
| Group I b | 32.3 (26.5–38.1%) | 37.4 (31.4–43.4%) | 42.9 (39.6–46.2%) |
| Group II b | 40.9 (34.9–46.9%) | 30.3 (24.6–36.0%) | 36.7 (33.5–39.9%) |
| Group III b | 26.8 (21.4–32.2%) | 32.3 (26.5–38.1%) | 20.4 (17.7–23.1%) |
| Indefinite contract b | 51.5 (45.4–57.6%) | 55.4 (49.6–61.2%) | 47.0 (43.7–50.3%) |
| Urban team b | 89.2 (85.4–93.0%) | 90.1 (86.6–93.6%) | 88.1 (79.1–84.3%) |
| Management responsibilities b | 34.2 (28.1 40.3%) | 34.2 (28.1 40.3%) | 32.4 (29.3–35.5%) |
| Morning shift b | 53.5 (47.4–59.6%) | 56.2 (50.4–62.0%) | 48.4 (45.1–51.7%) |
| Years in Area a | 10.4 (9.5–11.3) | 11.3 (10.5–12.1) | 11.2 (10.8–11.7) |
| High care pressure b | 37.3 (29.8–44.8%) | 29.8 (23.1–36.5%) | 53.7 (50.0–57.4%) |
a Average, in parenthesis the Confidence Interval of 95%
b Percentage over total responses, between parenthesis Confidence Interval of 95%.