Scale score medians and IQR for the scales used to assess patients’ beliefs about medicines (BMQ), comparing non-adherent with adherent patients
| Variable | Valid cases (n=578) | Scale score median (IQR) | Mann-Whitney U test | Adjusted with multivariable logistic regression* | |
|---|---|---|---|---|---|
| Non-adherent (n=72) | Adherent (n=506) | (p Value) | OR for a one-unit increase (95% CI) | ||
| BMQ-Specific | |||||
| Necessity | 558 | 18 (16–20) | 19 (17–21) | 0.079 | 0.90 (0.83 to 0.98) |
| Concern | 552 | 14 (11–17) | 12 (9–15) | <0.001 | 1.12 (1.05 to 1.21) |
| BMQ-General | |||||
| Overuse | 556 | 13 (11–14) | 11 (10–13) | <0.001 | 1.29 (1.14 to 1.45) |
| Harm | 544 | 11 (9–12.25) | 10 (8–12) | 0.038 | 1.12 (1.01 to 1.24) |
| Benefit | 560 | 16 (14–16) | 16 (15–18) | <0.001 | 0.77 (0.68 to 0.87) |
*Adjusted for age, sex, history of stroke, if treated in stroke unit, dependent on help/support from relatives, difficulties with memory, Brief IPQ—question 4, and respective BMQ subscale.
BMQ, Beliefs about Medicines Questionnaires.