DUP, prescription of typical antipsychotics, therapeutic alliance and insight were the most important features associated with non-adherence. This study also suggests that economic factors such as the service delivery system should not be neglected in public strategies aimed at addressing problems of non-adherence in non-universal coverage health systems.

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In the current increasingly fragmented health care systems, special attention must be given to PIP prescription in older population suffering from psychiatric disorders. Using the Beers criteria, the present study demonstrates the high prevalence of PIP prescription, which concerns a large panel of drugs but mostly anxiolytics and hypnotics independently of psychiatric or somatic diagnoses and sociodemographic characteristics. Our study has demonstrated for the first time an association between PIP prescription and lowered patient functioning. Further longitudinal studies should confirm a potential causal relation.

Future studies should further examine the link between increased use of emergency services and diagnostic variability.

ObjectiveThe aim of this study was to examine the complex relationships among neurocognition, insight and nonadherence in patients with schizophrenia.Methods Design: Cross-sectional study. Inclusion criteria: Diagnosis of schizophrenia according to the DSM-IV-TR criteria. Data collection: Neurocognition was assessed using a global approach that addressed memory, attention, and executive functions; insight was analyzed using the multidimensional ‘Scale to assess Unawareness of Mental Disorder;’ and nonadherence was measured using the multidimensional ‘Medication Adherence Rating Scale.’ Analysis: Structural equation modeling (SEM) was applied to examine the non-straightforward relationships among the following latent variables: neurocognition, ‘awareness of positive symptoms’ and ‘negative symptoms’, ‘awareness of mental disorder’ and nonadherence.ResultsOne hundred and sixty-nine patients were enrolled. The final testing model showed good fit, with normed χ2 = 1.67, RMSEA = 0.063, CFI = 0.94, and SRMR = 0.092. The SEM revealed significant associations between (1) neurocognition and ‘awareness of symptoms,’ (2) ‘awareness of symptoms’ and ‘awareness of mental disorder’ and (3) ‘awareness of mental disorder’ and nonadherence, mainly in the ‘attitude toward taking medication’ dimension. In contrast, there were no significant links between neurocognition and nonadherence, neurocognition and ‘awareness of mental disorder,’ and ‘awareness of symptoms’ and nonadherence.ConclusionsOur findings support the hypothesis that neurocognition influences ‘awareness of symptoms,’ which must be integrated into a higher level of insight (i.e., the ‘awareness of mental disorder’) to have an impact on nonadherence. These findings have important implications for the development of effective strategies to enhance medication adherence.

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