Article Text
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Measurement bias in different versions of the Dutch Health Assessment Questionnaire Disability Index
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Footnotes
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Handling editor Tore K Kvien
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Contributors MAHOV drafted the manuscript and performed all analyses. PMTK, HEV, WK, PLCvR and MAFJvdL critically revised the manuscript and contributed to the interpretation of the results. All authors read and approved the final version of the manuscript.
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Competing interests None.
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Ethics approval This study was approved by the ethical review board of hospitals participating in the DREAM registry.
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Provenance and peer review Not commissioned; externally peer reviewed.