title: Correlation between a novel upper limb activity monitor and four other instruments to determine functioning in upper limb complex regional pain syndrome type I.
abstract: OBJECTIVE
  To determine the place of a novel Upper Limb Activity Monitor in the field of instruments measuring functioning and health in upper limb complex regional pain syndrome type I, by exploring the correlation between the Upper Limb Activity Monitor and 4 questionnaires.
  
  
  METHODS
  Subjects (n = 30) were measured at home and correlations were calculated between the Upper Limb Activity Monitor and 4 questionnaires; Sickness Impact Profile, RAND-36 Health Survey, Disabilities of Arm Shoulder Hand Questionnaire and Radboud Skills Questionnaire.
  
  
  RESULTS
  Of the inter-questionnaire correlations 83% were significant, whereas 46% of the correlations between the Upper Limb Activity Monitor and the questionnaires were significant. The number and strength of the correlations between the Upper Limb Activity Monitor and questionnaires was dependent on the degree to which similar aspects of functioning were measured.
  
  
  CONCLUSIONS
  The Upper Limb Activity Monitor has some correlation with other instruments related to functioning and health, but generally it does not measure the same areas.
authors.affiliation: Department of Rehabilitation Medicine, Erasmus MC, Rotterdam, The Netherlands. f.schasfoort@erasmusmc.nl
authors.forename: Fabiënne C
authors.initials: FC
authors.lastname: Schasfoort
authors.forename: Johannes B J
authors.initials: JB
authors.lastname: Bussmann
authors.forename: Henk J
authors.initials: HJ
authors.lastname: Stam
mesh_terms: D000328:Adult; D000368:Aged; D001132:Arm / Q000503:physiopathology*; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009048:Motor Skills; D012019:Reflex Sympathetic Dystrophy / Q000503:physiopathology*; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires