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Table 2 Pearson correlations between total average number of Purdue Pegboard Test scores and other factors a

From: Stereopsis impairment is associated with decreased color perception and worse motor performance in Parkinson’s disease

Data parameters PD patients (n = 45) Controls (n = 50)
  Correlation coefficient (t) P Correlation coefficient (t) P
Age (yr) -0.127 0.405 -0.633 0.0001c
Sex (% male) -0.196 0.845 -1.715 0.093
H&Y stage -0.326 0.029b NA NA
UPDRS part III score -0.620 0.0001c NA NA
UPDRS total score -0.579 0.0001c NA NA
MMSE score 0.100 0.519 0.070 0.758
MoCA score 0.237 0.135 0.312 0.158
Course of disease -0.229 0.160 NA NA
  1. aH&Y, Hoehn and Yahr stage; MMSE, Mini Mental State Examination; MoCA, Montreal Cognitive Assessment; PD, Parkinson’s disease; UPDRS, Unified Parkinson’s Disease Rating Scale. bP < 0.05, cP < 0.01.