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Table 1 Demographic and clinical features of depressed ET, non-depressed ET and HCs

From: Altered local and matrix functional connectivity in depressed essential tremor patients

Measure DET (41) ET (49) HCs (43) Statistic P value
DET v HCs ET v HCs DET v ET
Demographic
 Age 47.85 ± 15.66 47.08 ± 12.657 46.91 ± 14.67 F = 0.24 0.56 0.95 0.55
 Sex (male/female) 26:15 32:17 27:16 x2 = 0.07 0.95 0.80 0.85
 Education (year) 14.73 ± 4.17 11.57 ± 4.12 12.39 ± 3.97 F = 6.98 3.82E-4 3.82E-4 0.01
 Handedness (R/L) 41:0 49:0 43:0     
Clinical of psychology and cognitive
 HDRS-17 18.98 ± 6.35 3.53 ± 1.46 1.93 ± 1.14 F = 275.25 4.03E-29 9.7E-8 1.01E-28
 MMSE 26.00 ± 1.40 26.46 ± 1.52 29.02 ± 1.10 F = 61.91 6.71E-18 1.83E-14 0.13
 HARS-14 7.56 ± 3.47 4.02 ± 1.57 1.49 ± 0.91 F = 79.71 5.67E-18 9.36E-15 7.31E-9
Clinical of tremor
 Tremor of onset (year) 34.93 ± 11.84 34.43 ± 10.16 NA T = 0.21 NA NA 0.83
 Tremor duration (year) 13.90 ± 9.40 12.69 ± 7.02 NA T = 0.70 NA NA 0.49
 TRS-parts A&B 22.66 ± 7.28 20.90 ± 7.35 NA T = 1.14 NA NA 0.26
 TRS-part C 14.05 ± 4.74 11.82 ± 5.80 NA T = 1.97 NA NA 0.05
 TETRAS 18.32 ± 8.27 17.63 ± 6.75 NA T = 0.57 NA NA 0.57
 TETRAS-ADL 21.39 ± 6.51 20.91 ± 5.66 NA T = 1.31 NA NA 0.19
  1. DET depressed ET, ET essential tremor, HCs healthy controls, HDRS-17 17-item Hamilton Depression Rating Scale, MMSE Mini-Mental State Examination, HARS-14 14-item Hamilton Anxiety Rating Scale, TRS Fahn-Tolosa-Marin Tremor Rating Scale, TETRAS Essential Tremor Rating Assessment Scale, TETRAS-ADL Essential Tremor Rating Assessment Scale-Activities of Daily Living