Rheumatol Int. 2005 May;25(4):292-5. Epub 2004 Dec 10.
Russell AS, Hui BK.
562 Heritage Medical Research Centre, University of Alberta Hospital, Edmonton, Alberta, Canada, T6G 2S2, firstname.lastname@example.org.
Objective: To determine whether the Primary Care Evaluation of Mental Disorders 1-page Brief Patient Health Questionnaire (PRIME-MD 1-page PHQ) can serve as: (1) a diagnostic test for fibromyalgia syndrome (FM), or (2) a questionnaire through which internists can be alerted to otherwise hidden mental disorders in patients attending internal medicine clinics.
Method: Two hundred and thirteen consecutive patients attending a rheumatology clinic were given the PRIME-MD 1-page PHQ and seen by a rheumatologist who was blind to the PRIME-MD diagnosis.
Results: The PRIME-MD 1-page PHQ pointed to Major Depressive Disorder in 33.3% of FM patients, Other Depressive Disorder in 33.3% of FM patients, and Panic Disorder in 22.2% of FM patients (all of whom also had Major Depressive Disorder), as compared to 13.1, 13.1, and 3.0% respectively in patients with other rheumatic disorders.
However, when used as a diagnostic test for FM, the PRIME-MD 1-page PHQ did not have adequate diagnostic value. When all the PRIME-MD 1-page PHQ diagnoses were compiled, however, a trend was observed. Compared to the rates of mental disorders in both the normal population and in primary care practices, the rates found in this rheumatology clinic were higher.
Conclusions: The PRIME-MD 1-page PHQ is not an adequate diagnostic test for FM. Because FM is primarily a somatization disorder that draws its symptoms from other current diseases, it may in fact be impossible to diagnose FM based on specific symptoms alone. However, the PRIME-MD 1-page PHQ proved to be a useful diagnostic tool in a rheumatology clinic. It helped to alert the physician to the possibility of an elevated frequency of mental disorders that would otherwise have gone unnoticed and untreated.
PMID: 15889304 [PubMed – in process]