Validity and reliability of the clock drawing test as a screening tool for cognitive impairment in patients with fibromyalgia.

OBJECTIVE The objective of the study was to assess the validity and reliability of the clock drawing test (CDT) in comparison with the Mini-Mental State Examination (MMSE) as a screening tool for cognitive impairment in patients with fibromyalgia (FM). METHODS Fifty female patients with FM and 51 healthy female controls were enrolled in the study… (More)