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Table 2: 
Comparison of MD and FA in patients and control subjectsa
HCPDPDDHC > PDHC > PDDPD > PDD
Anterior CFTs
    FA0.441 ± 0.035a0.399 ± 0.0280.399 ± 0.031P = .003bP = .003bP = .90
    MDc0.758 ± 0.0250.789 ± 0.0340.775 ± 0.031P = .031P = .33P = .47
Posterior CFTs
    FA0.519 ± 0.0380.489 ± 0.0400.477 ± 0.040P = .09P = .015bP = .72
    MD0.755 ± 0.0460.759 ± 0.0220.770 ± 0.027P = .94P = .32P = .51
Corticospinal tract
    FA0.655 ± 0.0200.651 ± 0.0220.651 ± 0.024P = .89P = .87P = .99
    MDc0.751 ± 0.0260.775 ± 0.0250.756 ± 0.031P = .077P = .92P = .17
  • Note:—HC indicates healthy controls.
  • 


    ↵a Values are mean ± SD.
  • 


    ↵b Indicates statistical significance (P < .016).
  • 


    ↵c Mean diffusivity values are expressed as 10−3 mm2/s.