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Table 3 Correlations among EDSS and PDDS with functional system scores from the EDSS in 96 patients with multiple sclerosis

From: Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis

Functional system EDSS EDSS 95% CI PDDS PDDS 95% CI P-value
Visual 0.369** (0.182) - (0.530) 0.253* (0.055) – (0.432) .38
Brainstem 0.157 (-0.045) - (0.347) 0.184 (-0.017)- (0.371) .85
Pyramidal 0.647** (0.513) - (0.750) 0.578** (0.427) – (0.698) .45
Cerebellar 0.528** (0.366) - (0.659) 0.501** (0.334) – (0.637) .80
Sensory 0.398** (0.215) - (0.554) 0.392** (0.208) – (0.549) .96
Bladder/Bowel 0.317** (0.124) - (0.487) 0.377** (0.191) – (0.537) .64
Mental 0.255* (0.057) - (0.433) 0.169 (-0.033) – (0.357) .54
  1. Note. EDSS = Expanded Disability Status Scale, PDDS = Patient Determined Disease Steps scale, P-value for the statistical significance of the difference between correlation coefficients for EDSS and PDDS with FS scores, * = p < .05, ** = p < .01, CI = Confidence Interval.