| 2003 | 2009 | 2010 | 2012 | p-trend |
---|---|---|---|---|---|
%a (95% CI) | %a (95% CI) | %a (95% CI) | %a (95% CI) | ||
Total: | |||||
 Low education | 48.1 (45.4–50.9) | 46.9 (44.8–49.1) | 48.2 (46.1–50.3) | 48.7 (45.7–51.6) | 0.865 |
 Medium education | 37.5 (35.4–39.6) | 32.9 (31.5–34.2) | 33.5 (32.2–34.9) | 30.9 (29.4–32.3) | <0.001 |
 High education | 25.0 (22.6–27.6) | 20.1 (18.8–21.4) | 19.9 (18.7–21.1) | 16.4 (15.2–17.7) | <0.001 |
 Total | 39.4 (38.0–40.8) | 35.0 (34.0–36.0) | 35.7 (34.8–36.7) | 32.7 (31.6–33.8) | <0.001 |
Men: | |||||
 Low education | 47.8 (43.9–51.7) | 46.7 (43.6–49.8) | 48.4 (45.4–51.5) | 49.5 (45.6–53.4) | 0.584 |
 Medium education | 40.4 (37.1–43.9) | 35.4 (33.2–37.8) | 37.1 (34.8–39.4) | 33.7 (31.6–36.0) | 0.002 |
 High education | 24.8 (21.8–28.2) | 20.3 (18.5–22.3) | 19.5 (17.8–21.2) | 15.9 (14.3–17.7) | <0.001 |
 Total | 40.1 (38.0–42.2) | 36.3 (34.8–37.8) | 37.0 (35.5–38.5) | 34.1 (32.5–35.8) | <0.001 |
Women: | |||||
 Low education | 48.5 (44.5–52.5) | 47.1 (44.1–50.1) | 48.0 (45.0–50.9) | 47.8 (43.3–52.3) | 0.783 |
 Medium education | 35.6 (33.0–38.2) | 31.4 (29.8–33.0) | 31.5 (29.9–33.1) | 28.5 (26.7–30.4) | <0.001 |
 High education | 25.3 (21.4–29.6) | 19.8 (18.1–21.7) | 20.3 (18.6–22.0) | 17.1 (15.2–19.1) | <0.001 |
 Total | 38.8 (36.9–40.8) | 34.0 (32.8–35.3) | 34.7 (33.5–36.0) | 31.3 (29.7–32.9) | <0.001 |