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Table 1: 
Cognitive evaluation^a of patients with PD
Cognitive Tasks FOG+ (n = 12) (mean ± SD) FOG− (n = 12) (mean ± SD) U Value P Value
MMSE 28.27 ± 2.22 27.94 ± 1.58 67.00 .799
Corsi Span 4.27 ± 0.64 4.77 ± 0.92 44.00 .314
Verbal Span 3.54 ± 0.66 4.02 ± 0.70 45.50 .211
Immediate recall (Rey) 34.54 ± 8.44 42.64 ± 9.30 33.00 .044^b
Delayed recall (Rey) 7.65 ± 2.90 9.34 ± 2.73 40.00 .118
CA 10.85 ± 0.71 10.95 ± 1.77 55.50 .525
RCPM 26.00 ± 4.98 27.4 ± 3.21 53.50 .449
FAB 12.41 ± 1.74 15.67 ± 1.27 3.00 .001^b
Verbal fluency 28.52 ± 7.95 43.61 ± 8.87 16.00 .001^b
Stroop (part II) 37.20 ± 10.26 35.87 ± 10.21 65.50 .976
Stroop (part III) 18.42 ± 4.58 22.38 ± 5.71 37.00 .079
TPCT 4.42 ± 2.71 7.67 ± 2.67 24.00 .005^b
Attentional matrices 43.21 ± 9.11 48.36 ± 5.44 43.50 .169

Note:—CA indicates constructional apraxia; FAB, Frontal Assessment Battery; MMSE, Mini-Mental State Examination; TPCT, Ten-Point Clock Test

 
↵a Scores are age- and education-adjusted.

 
↵b Significant.