Somatic symptoms have negligible impact on Patient Health Questionnaire-9 depression scale scores in neurological patients.
Irene L KatzanBrittany R LapinSandra GriffithLara JehiHubert FernandezErik P PioroStewart TepperPaul K CranePublished in: European journal of neurology (2021)
PHQ-9 items function consistently across disease severity, with salient levels of DIF impact found only for a very small proportion of people. These results suggest that the PHQ-9 provides a consistent measure of depression severity among people with neurological conditions associated with somatic symptoms that overlap with depression.
Keyphrases
- sleep quality
- depressive symptoms
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