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Perspectives on reasons of medication nonadherence in psychiatric patients

Authors Mert DG, Turgut NH, Kelleci M, Semiz M

Received 27 September 2014

Accepted for publication 4 November 2014

Published 13 January 2015 Volume 2015:9 Pages 87—93

DOI https://doi.org/10.2147/PPA.S75013

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Editor who approved publication: Dr Johnny Chen

Derya Güliz Mert,1 Nergiz Hacer Turgut,2 Meral Kelleci,3 Murat Semiz4

1Department of Psychiatry, Faculty of Medicine, Cumhuriyet University, 2Department of Pharmacology, Faculty of Pharmacy, Cumhuriyet University, 3Department of Psychiatric Nursing, Faculty of Health Sciences, Cumhuriyet University, Sivas, Turkey; 4Department of Psychiatry, Faculty of Medicine, University of Osmangazi, Tokat, Turkey


Purpose: This study was carried out to evaluate factors resulting in medication nonadherence within 6 months before admission to the psychiatric service of our hospital for bipolar disorder, schizophrenia/schizoaffective disorder, depression, and other psychiatric diseases.
Patients and methods: Two hundred and three patients admitted to the Psychiatry Service of the Medical Faculty were included in this study. Sociodemographic parameters and clinical findings within 6 months before admission and patients’ views on reasons of medication nonadherence were examined.
Results: Patients were classified into four groups according to their diagnosis: bipolar disorder (n=68, 33.5%), schizophrenia/schizoaffective disorder (n=59, 29.1%), depression (n=39, 19.2%), and others (n=37, 18.2%). The ratio of medication nonadherence was higher in the bipolar disorder group when compared to the groups with schizophrenia/schizoaffective disorder, depression, and other disorders (12.1%, 18.2%, and 24.2% vs 45.5%); however, the ratio of medication nonadherence was similar in schizophrenia/schizoaffective disorder, depression, and the others group. In logistic regression analysis, irregular follow-up (odds ratio [OR]: 5.7; 95% confidence interval [CI]: 2.92–11.31) and diagnosis (OR: 1.5; 95% CI: 1.07–1.95) were determined to be important risk factors for medication nonadherence. The leading factors for medication nonadherence were: “not willing to use medication”, “not accepting the disease”, and “being disturbed by side effects” in the bipolar disorder group, “not accepting the disease” in the schizophrenia/schizoaffective disorder group, “feeling well” in the depression group, and “being disturbed by side effects” in the other diseases group.
Conclusion: Medication nonadherence is an important problem in psychiatric patients and should be dealt with by taking into account the diagnosis, attendance to follow-up appointments, and the patient’s attitude. Ensuring regular attendance to follow-up appointments, adjusting the management plan according to the diagnosis, and improving their thoughts about resistance to medication can be beneficial in terms of medication adherence.

Keywords: bipolar disorder, schizophrenia, schizoaffective disorder, depression, patient’s attitude

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