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Effect of health professional intervention on adherence to statin use according to the cause of patient non-adherence.

Oñatibia-Astibia, Ainhoa; Malet-Larrea, Amaia; Gastelurrutia, Miguel Ángel; Calvo, Begoña; Ramírez, Dulce; Cantero, Ignacio; Goyenechea, Estibaliz.
Int J Clin Pharm; 42(2): 331-335, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32301066
Background Non-adherence is a problem that particularly affects those with chronic diseases. Studying causes for not following the treatment is necessary to choose the best intervention to improve non-adherence. Objective Analyze how the intentionality of non-adherence modulates the effects of professional intervention in patients with hypercholesterolemia


Community pharmacies and primary care centres in Spain. Methods A 6-month randomized controlled trial was conducted in 46 community pharmacies and 50 primary care centres in Spain. Adherence to statin therapy was measured with the Morisky-Green-Levine test. Non-adherence was classified based on the intentionality. Results 746 Patients were recruited for the study (465 non-adherent and 281 adherent). Of those, 237 were randomly assigned to the intervention group and 228 to the non-intervention group. The 56.5% of non-adherent patients were classified as unintentional non-adherents and 43.5% as intentional non-adherents. More patients in the intervention group finished being adherent compared with the non-intervention group (+ 17.2% for intentional non-adherents and + 27.4% for unintentional non-adherence). The percentage of patients in the intervention group who completed the study as adherent was higher among those who previously had unintentional non-adherence (66.4%) compared to those with intentional non- adherence (55.3%) (p < 0.001). Conclusion Intervention provided to patients with unintentional non-adherence was more effective than intervention provided to patients with intentional non- adherence.