Evaluation of Two Circadian Rhythm Questionnaires for Screening for the Delayed Sleep Phase Disorder

• 발행기관: 대한신경정신의학회
• 저자명: MinKyu Rhee HeonJeong Lee Katharine M. Rex Daniel F. Kripke
• 간행물 정보: 『Psychiatry Investigation』제9권 제3호, 236~244쪽, 전체 9쪽
• 주제분류: 의약학 > 정신과학
• 파일형태: PDF
• 발행일자: 2012.09.30

영문 초록

Objective-Delayed sleep phase disorder (DSPD) is a condition in which patients often fall asleep some hours after midnight and have difficulty waking up in the morning. Circadian chronotype questionnaires such as Horne-Östberg Morningness-Eveningness Questionnaire (MEQ) and Basic Language Morningness (BALM) scale have been used for screening for DSPD. This study was to evaluate these two chronotype questionnaires for screening of DSPD. Methods-The study samples were 444 DSPD and 438 controls. Cronbach’s alpha coefficient was calculated to evaluate for internal consistency. An exploratory factor analysis was conducted using principal-axis factoring. The diagnostic performance of a test was evaluated using Receiver Operating Characteristic (ROC) curve analysis. A discriminant function analysis was also performed. Results-For internal consistency, Cronbach’s alpha of 0.898 for BALM was higher than the 0.837 for MEQ, though both have acceptable internal consistency. BALM has better construct validity than the MEQ because some MEQ items measure different dimensions. However, when we evaluated the efficiency of two questionnaires for DSPD diagnosis by using the ROC curve, the BALM was similar to the MEQ. In a discriminant analysis with the BALM to classify the two groups (DSPD vs. normal), 6 items were identified that resulted in good classification accuracy. Upon examination of the classification procedure, 94.2% of the originally grouped cases were classified correctly. Conclusion-These findings suggest that the BALM has better psychometric properties than the MEQ in screening and discriminating DSPS.

목차

INTRODUCTION

METHODS

RESULTS

DISCUSSION

ACKNOWLEDGEMENTS

REFERENCES

키워드

Delayed sleep phase disorder Circadian rhythm questionnaire Validity Chronotype