| 2003 | 2009 | 2010 | 2012 | p-trend |
---|---|---|---|---|---|
% (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | ||
Total: | |||||
 Low education | 47.9 (45.3–50.4) | 46.5 (44.5–48.5) | 48.6 (46.6–50.6) | 48.4 (45.8–51.1) | 0.839 |
 Medium education | 37.5 (35.5–39.5) | 32.4 (31.1–33.8) | 33.2 (31.9–34.5) | 30.2 (28.9–31.6) | <0.001 |
 High education | 25.1 (22.9–27.5) | 20.2 (18.9–21.5) | 20.0 (18.8–21.3) | 16.6 (15.3–17.9) | <0.001 |
 Total | 39.4 (38.0–40.8) | 35.1 (34.1–36.1) | 35.9 (34.9–36.8) | 32.7 (31.6–33.8) | <0.001 |
Men: | |||||
 Low education | 48.7 (45.1–52.4) | 47.9 (45.0–50.8) | 49.6 (46.7–52.5) | 49.8 (46.1–53.4) | 0.740 |
 Medium education | 38.9 (35.8–42.1) | 33.8 (31.7–36.0) | 35.5 (33.4–37.7) | 32.3 (30.2–34.4) | 0.001 |
 High education | 24.7 (21.8–27.8) | 20.4 (18.6–22.4) | 19.8 (18.1–21.5) | 15.8 (14.2–17.5) | <0.001 |
 Total | 39.9 (37.9–42.0) | 36.1 (34.6–37.7) | 37.1 (35.6–38.5) | 33.9 (32.4–35.6) | <0.001 |
Women: | |||||
 Low education | 47.0 (43.4–50.6) | 45.0 (42.2–47.7) | 47.5 (44.8–50.2) | 46.9 (43.0–50.8) | 0.930 |
 Medium education | 36.3 (33.8–38.8) | 31.3 (29.7–32.9) | 31.2 (29.7–32.8) | 28.4 (26.6–30.3) | <0.001 |
 High education | 25.8 (22.3–29.7) | 19.9 (18.2–21.7) | 20.4 (18.7–22.2) | 17.5 (15.5–19.6) | <0.001 |
 Total | 38.8 (36.9–40.8) | 34.0 (32.8–35.3) | 34.7 (33.4–35.9) | 31.5 (29.9–33.1) | <0.001 |