A brief mental fatigue questionnaire

Abstract:

A brief mental fatigue questionnaire was administered to normal subjects and muscle-diseased, Chronic Fatigue Syndrome (CFS), recovered CFS and depressed patients. The questionnaire was found to have excellent internal consistency and discriminated effectively between CFS and depressed patients on the one hand and recovered CFS, normal and muscle-diseased patients on the other. However, the scale failed to discriminate between CFS and depressed subjects, who were found to experience qualitatively and quantitatively similar mental fatigue symptoms.

 

Source: Bentall RP, Wood GC, Marrinan T, Deans C, Edwards RH. A brief mental fatigue questionnaire. Br J Clin Psychol. 1993 Sep;32 ( Pt 3):375-9. http://www.ncbi.nlm.nih.gov/pubmed/7902751

 

A comparative psychiatric assessment of patients with chronic fatigue syndrome and muscle disease

Abstract:

The psychiatric status of patients with chronic fatigue syndrome (N = 34) and muscle disease (N = 24) attending a general medical clinic was studied. Among fatigue patients 14 (41.2%) were cases and a further 9 (26.5%) were subcases of psychiatric disorder as defined by CATEGO. A variety of diagnoses was found. Significantly fewer of the muscle patients had a psychiatric disorder with 3 (12.5%) being cases and 1 (4%) a subcase. The relative risk of psychiatric disorder in patients with chronic fatigue syndrome compared to patients with muscle disease was 3.3:1.

 

Source: Wood GC, Bentall RP, Göpfert M, Edwards RH. A comparative psychiatric assessment of patients with chronic fatigue syndrome and muscle disease. Psychol Med. 1991 Aug;21(3):619-28. http://www.ncbi.nlm.nih.gov/pubmed/1946850