한국판 약물 순응척도의 표준화 연구

The Reliability and Validity of the Korean Version of Medication Adherence Rating Scale

본 연구는 KMARS의 표준화 연구로서 KMARS는 양호한 신뢰도와 공존 타당도를 가진 유용한 순응도 평가 도구인 것으로 검증되었다. 요인 분석 결과 KMARS는 순응행동, 약물에 대한 반응, 약물에 대한 태도의 3가지 요인으로 구성되어 순응도에 영향을 미치는 다양한 요소들을 고려하여 순응도를 평가할 수 있다. 문항 중 ‘나는 아플 때만 약을 먹는다’는 중의적 의미를 갖기 때문에 사용에 주의가 필요하다. KMARS는 시간적 여유가 부족한 외래환경에서 환자의 순응도를 확인하는 편리한 평가 도구로서 활용이 기대된다.

Objective Finding out patient’s non-adherence to medication is an important work for treating schizophrenia. The Medication Adherence Rating Scale is a self-report form, which can simply measure medication adherence in psychosis. We evaluated the reliability and validity of the Korean version of Medication Adherence Rating Scale (KMARS). Methods Eighty-one individuals with schizophrenia completed the self-administered questionnaires including KMARS, Brief Adherence Rating Scale (BARS), Korean version of Drug Attitude Inventory-10 (KDAI-10) and Korean version of Medication Adherence Questionnaire (KMAQ). Psychometric properties of the KMARS were analyzed. Results The KMARS has an acceptable internal consistency (α=0.71). The KMARS total scores are moderately correlated with BARS (r=0.44, p<0.01), KDAI-10 (r=0.55, p<0.01) and KMAQ (r=0.62, p<0.01). As the result of factor analysis, the structure of the KMARS is different from original scale, but the KMARS can assess not only adherence behavior but also subjective response to medication. Among the questions item 5, “I take my medication only when I am sick”, should be used carefully, because it has ambiguous meaning in Korean. Conclusion KMARS is a simple and reliable tool for measuring medication adherence in psychosis.