Table 2 Secondary adherence at 1 and 4 years of follow-up.

From: Primary and secondary non-adherence to osteoporotic medications after hip fracture in Spain. The PREV2FO population-based retrospective cohort study

  

1 year

4 years

Naïve users Mean/% (95CI)

Experienced users Mean/% (95CI)

Naïve users Mean/% (95CI)

Experienced users Mean/% (95CI)

PDC (mean)

58.7 (57.2–60.2)

66.6 (65.4–67.8)

46.3 (44.8–47.8)

57.3 (56.0–58.5)

PDC (%)

<20%

25.2 (23.5–27.1)

14.9 (13.6–16.3)

33.9 (31.9–35.9)

20.8 (19.2–22.4)

20–80%

32.1 (30.2–34.1)

35.7 (33.9–37.5)

39.9 (37.8–42.0)

43.5 (41.6–45.3)

≥80%

42.6 (40.6–44.7)

49.4 (47.5–51.3)

26.2 (24.4–28.1)

35.8 (34.0–37.6)

Non–persistence (%)

54.5 (52.4–56.6)

44.9 (43.0–46.8)

74.7 (72.9–76.5)

66.5 (64.7–68.2)

  1. PDC: Proportion of Days Covered; 95CI: 95% confidence intervals for mean or proportions.
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