단축형 항정신병약물치료 중 주관적 안녕감 척도의 표준화 연구

A Validation Study of the Korean Version of the Subjective Well-being Under Neuroleptic Treatment Scale-Short Form

  정신분열병 환자의 약물 치료 과정에서 이들의 주관적 안녕감을 평가하는 것은 임상현장과 연구영역 모두에서 매우 중요하다. 본 연구에서는 세계적으로 널리 사용되고 있는 정신분열병 환자의 삶이 질 척도인 항정신병약물치료 중 주관적 안녕감 척도-단축형의 한국어판(KvSWN-K)의 신뢰도와 타당도를 검증하였다. 연구결과 KvSWN-K가 정신분열병 환자의 삶의 질을 평가하는 도구로서 신뢰도와 타당도가 높음을 증명하였고, 또한 우울증상이 주관적 안녕감과의 상관관계가 높음을 확인하였다. 향후 국내에서도 정신분열병 환자의 주관적 안녕감을 평가하는 도구로서 KvSWN-K가 널리 활용되기를 기대한다.

  Objective : The purpose of this study was to validate the Korean version of the Subjective Well-being under Neuroleptic Treatment Scale-Short Form (KvSWN-K), which has been widely used to assess the quality of life in patients with schizophrenia. Methods : The subjects for the present study were 140 patients meeting the diagnostic criteria of DSM-Ⅳ for schizophrenia. The KvSWN-K with 20 items was administered with the EuroQoL-5D (EQ-5D) to evaluate concurrent validity. Sociodemographic and clinical characteristics were obtained, and the Positive and Negative Syndrome Scale (PANSS), Calgary Depression Scale for Schizophrenia (CDSS), Social and Occupational Functional Assessment Scale (SOFAS), Simpson-Angus Rating Scale, Barnes Akathisia Scale (BAS), Abnormal Involuntary Movement Scale, and Drug Attitude Inventory were administered to investigate their relationships with the KvSWN-K. Results : The KvSWN-K showed good internal consistency and test-retest reliability. The scores on the subscale and total KvSWN-K showed relevant correlation with scores on the EQ-5D visual analog scale and most subscales of the EQ-5D. Employment status and scores on the SOFAS were significantly positively correlated with the score on the KvSWN-K, and scores on the CDSS, BAS, and subscales and total PANSS scores were significantly negatively correlated with the score on the KvSWN-K. Regression analysis revealed that the CDSS showed the most significant correlations with the KvSWN-K. Conclusion : Our findings demonstrated that the KvSWN-K is a reliable and valid assessment tool for evaluating the quality of life in patients with schizophrenia. Depression measured by the CDSS was the most important factor influencing subjective well-being in patients with schizophrenia.