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Table 1 Subjects’ demographic and clinical characteristics

From: Aberrant functional connectivity in insular subregions in somatic depression: a resting-state fMRI study

Variables SD(n = 28) NSD(n = 30) HC(n = 30) T/F/χ p
Sex(M/F) 13/15 14/16 17/13 0.810a 0.667a
Age, y 37.21 ± 7.16 34.10 ± 9.91 35.83 ± 8.15 0.256b 0.775b
Education, y 13.36 ± 3.83 14.77 ± 2.94 14.23 ± 2.47 1.158b 0.228b
Duration of illness, mo 30.64 ± 47.03 68.07 ± 86.23 -2.070c 0.044c
Age at onset, y 34.54 ± 8.52 28.33 ± 8.54 2.020c 0.048c
Depression, No. of episodes 1.64 ± 1.25 2.37 ± 1.71 -1.826c 0.073c
HAMD-17 Total score 23.61 ± 4.13 22.80 ± 4.98 0.669c 0.506c
Anxiety 6.71 ± 2.12 5.37 ± 2.22 2.263c 0.022c
Cognitive disturbance 3.00 ± 1.72 4.00 ± 2.23 -1.903c 0.062c
Retardation 7.75 ± 1.71 8.23 ± 1.87 -1.024c 0.310c
Sleep disturbance 4.32 ± 1.66 4.23 ± 2.11 0.176c 0.861c
Weight loss 0.75 ± 0.97 0.77 ± 0.86 -0.070c 0.945c
Antidepressants
 SSRI 9 14    
 SNRI 7 8    
 NaSSA 1 3    
 Treatment-naive 11 5    
  1. Abbreviations: SD Somatic depression, NSD Non-somatic depression, HC Health control, HAMD Hamilton Depression Rating Scale
  2. aThe χ/p value was obtained by two-tailed Pearson chi-square test
  3. bData were presented as the range of minimum-maximum (mean ± SD). The F/p value was obtained by one-way analysis of variance
  4. cData were presented as the range of minimum-maximum (mean ± SD). The T/p value was obtained by two-sample two-tailed t test