Abstract
BackgroundThe aim of this study was to determine whether adherent and non-adherent patients with type 2 diabetes can be differentiated according to psychosocial characteristics. MethodsA total of 1214 patients were included in the analysis. Data were derived from a cross-sectional observational study of adults with diabetes of the Access Santé (Access Health) panel of Kantar Health France. Patients completed a questionnaire on adherence to medication, psychological determinants (trust in physicians, constancy of habits, patience, temporal horizon, health locus of control, obedience, psychological reactivity, prevention vs promotion, optimism vs pessimism) and social deprivation. ResultsOf these 1214 subjects, 46.2% were considered strictly adherent to antidiabetic medication, as reflected by negative answers to all six questions suggesting a non-adherent behaviours, whereas 48.9% provided 1–2 positive answers and 4.9% provided 3–6 positive answers, and were considered non-adherent. In addition to the effect of younger age (P=0.03), multivariate logistic regression analysis demonstrated the following psychosocial determinants of non-adherence: chance locus of control (P=0.02); lack of trust in physicians (P=0.010); and pessimism (P=0.021). Multiple factor analysis identified adherence and social deprivation as dimensions separating three distinct patient populations: (i) non-adherent; (ii) adherent and socially deprived; and (iii) adherent and non-socially deprived. It also revealed that patience, obedience, cautious behaviour, optimism, trust in physicians and constancy of habits were associated with adherence. ConclusionOf the multiple determinants of adherence, trust in physicians and constancy of habits represent modifiable factors, and constitute targets to prevent non-adherence because they can be reinforced through patient education and improved physician – patient relationship. Also, psychosocial determinants of adherence differ widely between socially deprived and non-deprived patients.
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