수면 문제 선별 질문지의 신뢰도, 타당도 연구: 불면증상을 중심으로
Validation and Reliability of the Sleep Problem Screening Questionnaire: Focusing on Insomnia Symptomss
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초록
본 연구에서는 불면증상 뿐만 아니라 과다수면, 하지불안증후군을 포함하여 수면 문제를 포괄적으로 평가 하기 위한 수면 문제 선별 설문지(Sleep Problem Screen¬ing Questionnaire, SPSQ)를 개발하고, 신뢰도와 타당도를 검증하고자 하였다. 불면증상(SPSQi), 과다수면(SPSQh), 하지불안증 후군(SPSQr)의 세 가지 하위 영역을 포함하는 SPSQ를 개 발하였다. 다음으로, 불면장애 임상군 222명 및 건강군 78 명을 대상으로 SPSQ와 비교 척도인 불면증 심각도 척도 (Korean version of Insomnia Severity Index)를 진행하고, 해당 데이터를 분석에 사용하였다. SPSQ는 수용할만한 내적 일관성과 수렴·변별 타당도를 보여 수면장애의 측정에 타당한 도구로 평가되었 다. ROC curve 분석 결과, 불면장애의 임상적 유의미성 판 단을 위한 절단점은 SPSQi 6점, 민감도와 특이도는 각각 0.94, 0.96이었다. 해당 연구결과는 SPSQ가 일반 성인 인구의 수면 문제를 선별하는데 있어 신뢰할 수 있고 유효한 도구임을 시사한다. 단, 하지불안증후군 및 과다수면 관련 척도와 비 교 검증이 수행되지 못한 점을 고려해야겠다.
Abstract
The purpose of this study was to develop a screening tool that is simple and easy to use for assessing sleep prob¬lems, including hypersomnolence, restless legs syndrome, and insomnia. We also examined the reliability and validity of this tool. We developed the Sleep Problem Screening Questionnaire (SPSQ), which consists of three sub-sections: insomnia (SPSQi), hypersomnolence (SPSQh), and restless legs syndrome (SPSQr). Subsequently, the participants, consisting of 222 pa¬tients with insomnia disorder and 78 healthy individuals, completed both the SPSQ and the comparative scale (Korean version of the Insomnia Severity Index). The analysis was then conducted using this data. The SPSQ demonstrated good convergent and discriminant validity, as well as satisfactory internal consistency. A cutoff score of 6 on the SPSQi was found to be optimal for distinguishing individuals with insomnia. The results of this study suggest that the SPSQ is a reliable and valid tool for screening sleep problems among general adult population. However, there is a limitation as a comparison and validation with scales related to restless legs syn¬drome and hypersomnolence were not conducted.
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