title: Comparing two measures of psychomotor performance in patients with HIV: the Coin Rotation Test and the Modified HIV Dementia Screen.
abstract: BACKGROUND
  Psychomotor slowing is an early symptom of HIV-associated dementia. The Modified HIV Dementia Scale (MHDS) is a fast, reliable measure of HIV-associated dementia. However, literacy may influence the psychomotor speed subscale (MHDS-PS). Psychomotor speed might be more accurately assessed using the Coin Rotation Test (CRT).
  
  
  OBJECTIVE
  This study examined the CRT's validity in assessing psychomotor speed in HIV+ patients by comparing it with the MHDS-PS. We also investigated whether demographic, education, or HIV-related variables were associated with either measure.
  
  
  METHODS
  The sample consisted of 204 HIV+ patients at a community health clinic. All participants completed the MHDS and CRT as part of admission to the clinic. Demographic, education, and disease data were also obtained.
  
  
  RESULTS
  Correlations revealed good convergent validity between the CRT and MHDS-PS. Gender did not significantly affect CRT performance but did affect MHDS-PS performance. CRT performance was less affected by education than MHDS-PS performance.
  
  
  CONCLUSIONS
  The CRT is a valid measure of psychomotor speed in HIV+ patients and may be more accurate than the MHDS-PS, particularly in individuals with lower levels of education.
authors.affiliation: Earl K. Long Medical Center, LSUHSC, Baton Rouge, LA, USA.
authors.forename: Kyle S
authors.initials: KS
authors.lastname: Minor
authors.forename: Glenn N
authors.initials: GN
authors.lastname: Jones
authors.forename: Diana W
authors.initials: DW
authors.lastname: Stewart
authors.forename: Benjamin D
authors.initials: BD
authors.lastname: Hill
authors.forename: Magdalena
authors.initials: M
authors.lastname: Kulesza
mesh_terms: D015526:AIDS Dementia Complex / Q000175:diagnosis*; D000328:Adult; D005260:Female; D015658:HIV Infections / Q000503:physiopathology / Q000523:psychology; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011597:Psychomotor Performance / Q000502:physiology*; D012372:ROC Curve; D012680:Sensitivity and Specificity; D012737:Sex Factors