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. 1993 Oct;37(7):753-62.
doi: 10.1016/0022-3999(93)90104-n.

The measurement of fatigue: a new instrument

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The measurement of fatigue: a new instrument

J E Schwartz et al. J Psychosom Res. 1993 Oct.

Abstract

Fatigue is a frequent medical symptom which has not been routinely measured. We present a 29-item fatigue assessment instrument, describe its psychometric properties, and use it to differentiate normal fatigue from fatigue related medical disorders. Differences in fatigue across a variety of medical disorders, the reproducibility of the fatigue instrument, and its convergent validity with other fatigue measures are also described.

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