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. 2021 Jan 11;21:16. doi: 10.1186/s12883-020-02037-z

Table 2.

Disease severity and neuropsychological assessment in PD patients with different DWMH gradings

DWMH gradings Normal (n=24) Mild (n=80) Moderate to Severe (n=42) P P1 P2 P3
Gender (male, female) 11,13 30,50 23,19 0.185 0.484 0.610 0.084
Age (years, mean (SD)) 55.37 (12.99) 63.06 (9.85) 69.61 (6.72) 0.001* 0.013* 0.001* 0.001*
HTN (number, percentage) 8 (33.3%) 25 (31.3%) 21 (50%) 0.117 0.848 0.193 0.043*
DM (number, percentage) 3 (12.5%) 10 (12.5%) 6 (14.3%) 0.959 1.000 0.840 0.782
Hypercholesterolemia (number, percentage) 3 (12.5%) 16 (20%) 12 (28.6%) 0.286 0.407 0.137 0.287
Smoking (number, percentage) 1 (4.2%) 3 (3.8%) 0 0.436 0.926 0.186 0.206
Medications (number, percentage) 8 (33.3%) 30 (37.5%) 14 (33.3%) 0.873 0.711 1.000 0.650
UPDRS total, mean (SD) 33.91 (23.26) 39.78 (23.05) 38.71 (29.19) 0.458 0.226 0.646 0.478
Modified Hoehn and Yahr scale, mean (SD) 1.71 (0.85) 1.92 (1.09) 2.09 (1.31) 0.706 0.674 0.404 0.583
Schwab and England ADL scale mean (SD) 87.36 (12.40) 82.89 (16.55) 81.00 (22.16) 0.583 0.281 0.528 0.741
MMSE, mean (SD) 25.47 (3.31) 25.32 (4.53) 22.14 (5.71) 0.002* 0.471 0.021* 0.001*
Neuropsychological battery
 Attention, mean (SD) −0.24 (1.95) −0.20 (2.03) −1.57 (2.91) 0.020* 0.899 0.060 0.006*
 Executive function, mean (SD) −1.31 (4.48) − 0.60 (4.43) −2.04 (4.69) 0.338 0.441 0.758 0.149
 Memory, mean (SD) 0.09 (1.96) −0.34 (2.17) −1.36 (2.77) 0.040* 0.620 0.028* 0.027*
 Language, mean (SD) −0.54 (1.73) −0.26 (2.43) −1.30 (2.87) 0.127 0.431 0.298 0.051
 Visual-spatial, mean (SD) −1.29 (1.79) −0.56 (2.12) −1.26 (2.67) 0.148 0.087 0.714 0.159

Kruskal-Wallis H test was used for between-group comparisons of the three groups, and Mann-Whitney U test was used for between-two-group comparisons

P Comparison of group 0, 1, and 2+ 3, P1 Comparison of group 0 and 1, P2 Comparison of group 0 and 2+ 3, P3 Comparison of group 1 and 2+ 3, SD Standard deviation, PD Parkinson’s disease, DWMH Deep white matter hyperintensity, HTN Hypertension, DM Diabetes Mellitus; Medications, was defined as Benzodiazepines

*p< 0.05