TY - JOUR
T1 - Psychometric analysis of common mental disorders -- Screening Questionnaire (CMD-SQ) in long-term sickness absence
AU - Søgaard, Hans Jørgen
AU - Bech, Per
N1 - Keywords: Absenteeism; Adult; Disability Evaluation; Humans; Mass Screening; Mental Disorders; Psychometrics; Questionnaires; Reproducibility of Results; Sensitivity and Specificity; Sick Leave; Time Factors
PY - 2009
Y1 - 2009
N2 - AIMS: Mental disorders often go undetected in primary care, for persons awarded disability pension, and in sick-leave certificates. No validity tests of instruments for detection and measurement of mental disorders have been performed in long-term sickness absence (LSA). This is the aim of the present study for Common Mental Disorders - Screening Questionnaire (CMD-SQ). METHODS: It is validity tested in a well-defined Danish population comprising all persons on continuous sickness absence just exceeding eight weeks. CMD-SQ is composed of SCL-SOM (somatization), Whiteley-7 (illness worry and conviction), SCL-ANX4 (anxiety), SCL-DEP6 (depression), SCL-8 (emotional disorder), and CAGE (alcohol dependency). RESULTS: Of 2,414 incident persons on long-term sickness absence within one year, 1,121 participated in the study by filling in CMD-SQ and a subsample of 337 was diagnosed by a psychiatric examination including Present State Examination. Psychometric properties such as scalability and monotonicity, construct validity, and predictive validity were analyzed. Further change over time was analyzed. SCL-SOM and Whiteley-7 showed slight psychometric and screening statistics whereas a combined scale of SC-ANX4, SCL-DEP6, and SCL-8, called SCL-8AD, showed the best and excellent psychometric and screening statistics. CONCLUSIONS: SCL-8AD, a sub-scale of CMD-SQ, is a promising candidate for screening and measurement of mental disorders in long-term sickness absence.
AB - AIMS: Mental disorders often go undetected in primary care, for persons awarded disability pension, and in sick-leave certificates. No validity tests of instruments for detection and measurement of mental disorders have been performed in long-term sickness absence (LSA). This is the aim of the present study for Common Mental Disorders - Screening Questionnaire (CMD-SQ). METHODS: It is validity tested in a well-defined Danish population comprising all persons on continuous sickness absence just exceeding eight weeks. CMD-SQ is composed of SCL-SOM (somatization), Whiteley-7 (illness worry and conviction), SCL-ANX4 (anxiety), SCL-DEP6 (depression), SCL-8 (emotional disorder), and CAGE (alcohol dependency). RESULTS: Of 2,414 incident persons on long-term sickness absence within one year, 1,121 participated in the study by filling in CMD-SQ and a subsample of 337 was diagnosed by a psychiatric examination including Present State Examination. Psychometric properties such as scalability and monotonicity, construct validity, and predictive validity were analyzed. Further change over time was analyzed. SCL-SOM and Whiteley-7 showed slight psychometric and screening statistics whereas a combined scale of SC-ANX4, SCL-DEP6, and SCL-8, called SCL-8AD, showed the best and excellent psychometric and screening statistics. CONCLUSIONS: SCL-8AD, a sub-scale of CMD-SQ, is a promising candidate for screening and measurement of mental disorders in long-term sickness absence.
U2 - 10.1177/1403494809344653
DO - 10.1177/1403494809344653
M3 - Journal article
SN - 1403-4948
VL - 37
SP - 855
EP - 863
JO - Scandinavian Journal of Public Health
JF - Scandinavian Journal of Public Health
IS - 8
ER -