Journal List > J Korean Neuropsychiatr Assoc > v.56(4) > 1017849

Choi, Lee, and Hwang: Benzodiazepine Use among Patients with Schizophrenia in Korea: Analysis of Database of Health Insurance Review Agency

Abstract

Objective

This study was designed to examine the pattern of benzodiazepine use in a representative sample of patients with schizophrenia in Korea.

Method

Data generated by the Health Insurance Review Agency of Korea was used to examine the frequency of benzodiazepine use. Demographic and geographic factors, hospital types in which patients received prescriptions, health insurance coverage, and the number of concomitant antipsychotics associated with benzodiazepine use were explored by multivariate logistic regression analysis.

Results

Among the 183427 patients with schizophrenia, the frequency of benzodiazepine use was 67.5% (n=122859). Use of benzodiazepines was highly associated with female patients treated in hospitals located in Gyeonggi, Gyeongsang, and Gangwon provinces, medicaid patients, patients treated in mental hospitals and private psychiatric clinics, and patients using concomitant antipsychotic agents.

Conclusion

The study demonstrated that benzodiazepine use was highly prevalent among patients with schizophrenia. Long-term use of benzodiazepine may be at higher risk of neurocognitive side effects and risk of mortality. Therefore, patients with schizophrenia taking benzodiazepine concomitantly should be closely monitored for benefits and risks of benzodiazepine use. For the medicaid patients, policy change is urgently needed in order for patients to receive equal quality of treatment with that of non-medicaid patents.

Figures and Tables

Table 1

Prescription frequency of benzodiazepines to the patients with schizophrenia in 2015, by benzodiazepine name

jkna-56-168-i001

* : Z-hypnotic

Table 2

Characteristics of patients with schizophrenia in 2015 in Korea, by benzodiazepine use

jkna-56-168-i002

* : The significance tests reflect the difference between the benzodiazepine users and nonusers. M : Mean, SD : Standard deviation

Table 3

Predictors of benzodiazepine use among 183427 patients with schizophrenia in Korea

jkna-56-168-i003

* : p<0.05, : Odds ratio was calculated including all variables in the table. CI : Confidence interval

Notes

Conflicts of Interest The authors have no financial conflicts of interest.

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