Validation of the 4DSQ Somatization Subscale in the Occupational Health Care Setting as a Screener.

Purpose Somatoform disorders (physical symptoms without medical explanation that cause dysfunction) are prevalent in the occupational health (OH) care setting and are associated with functional impairment and absenteeism. Availability of psychometric instruments aimed at assessing somatoform disorde...

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Published in:Journal of Occupational Rehabilitation Vol. 25; no. 1; pp. 105 - 116
Main Authors: Vroege, Lars, Emons, Wilco, Sijtsma, Klaas, Hoedeman, Rob, Feltz-Cornelis, Christina
Format: research tables/charts Journal Article
Published: Springer Nature Mar2015
Online Access:View this record in EBSCOhost
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      dt: Mar2015
      vid: 25
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      pub: Springer Nature
      place: New York, New York
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        10.1007/s10926-014-9529-2
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        atl: Validation of the 4DSQ Somatization Subscale in the Occupational Health Care Setting as a Screener.
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        au:
          Vroege, Lars
          Emons, Wilco
          Sijtsma, Klaas
          Hoedeman, Rob
          Feltz-Cornelis, Christina
        affil: Department of Methodology and Statistics, Tilburg University, Tilburg The Netherlands
      sug:
        subj:
          Instrument Validation
          Clinical Assessment Tools Evaluation
          Occupational Health
          Somatoform Disorders Diagnosis
          Psychometrics
          Depression
          Anxiety
          DSM
          Validation Studies
          Sensitivity and Specificity
          Confidence Intervals
          ROC Curve
          Construct Validity
          Chi Square Test
          T-Tests
          Effect Size
          Predictive Value of Tests
          Data Analysis Software
          Sample Size
          Adult
          Middle Age
          Female
          Male
          Human
          Clinical Assessment Tools
          Questionnaires
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Female
          Male
      ab: Purpose Somatoform disorders (physical symptoms without medical explanation that cause dysfunction) are prevalent in the occupational health (OH) care setting and are associated with functional impairment and absenteeism. Availability of psychometric instruments aimed at assessing somatoform disorders is limited. In the OH setting, so far only the Patient-Health-Questionnaire 15 has been validated as screener for somatoform disorder, and has been shown to have moderate validity. The Four-Dimensional Symptom Questionnaire (4DSQ) is frequently used in the OH setting but the Somatization subscale is not validated yet. The aim of this study is to validate the 4DSQ Somatization subscale as screener for DSM-IV somatoform disorder in the OH setting by using the MINI interview as gold standard. Methods Employees absent from work due to physical symptoms, for a period longer than 6 weeks and shorter than 2 years, were asked to participate in this study. They filled out the 4DSQ and underwent a MINI interview by telephone for DSM-IV classification. Specificity and sensitivity scores were calculated for all possible cut-off scores and a receiver operator curve was computed for the Somatization subscale. 95 % confidence intervals (95 % CIs) were calculated for sensitivity and specificity. Results The Somatization subscale of the 4DSQ has an optimal cut point of 9, with specificity and sensitivity equal to 64.3 % [95 % CI (53.6; 73.7 %)] and 60.9 % [95 % CI (40.8; 77.8 %)], respectively. Receiver operator curves showed an area under the curve equal to 0.61 [SE = 0.07; 95 % CI (0.48; 0.75)] for the Somatization subscale of the 4DSQ. Conclusion The 4DSQ Somatization subscale is a questionnaire of moderate sensitivity and specificity.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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