Table 2 Features of depressive symptoms of different classes (n = 1221).

From: The relationship between resting EEG features and physical exercise among university students with depressive symptoms

Depressive Symptoms

Overall (n = 1221)

Class 1 (n = 678)

Class 2 (n = 374)

Class 3 (n = 168)

F

p

Post hoc

Overall PHQ-9

4.84 ± 4.35

1.75 ± 1.65

7.78 ± 2.64

10.61 ± 4.42

1205.143

 < 0.001

Class 1 < Class 2 < Class 3

Anhedonia

1.74 ± 0.69

1.37 ± 0.51

2.16 ± 0.58

2.29 ± 0.68

337.342

 < 0.001

Class 1 < Class 2 < Class 3

Sad mood

1.60 ± 0.65

1.21 ± 0.41

2.00 ± 0.51

2.26 ± 0.63

512.959

 < 0.001

Class 1 < Class 2 < Class 3

Sleep

1.57 ± 0.73

1.21 ± 0.44

1.96 ± 0.79

2.14 ± 0.74

265.321

 < 0.001

Class 1 < Class 2 < Class 3

Energy

1.82 ± 0.76

1.42 ± 0.53

2.30 ± 0.67

2.39 ± 0.76

331.960

 < 0.001

Class 1 < Class 2 = Class 3

Appetite

1.52 ± 0.69

1.20 ± 0.44

1.86 ± 0.73

2.04 ± 0.72

231.808

 < 0.001

Class 1 < Class 2 < Class 3

Guilty

1.47 ± 0.67

1.10 ± 0.31

1.79 ± 0.68

2.21 ± 0.72

417.585

 < 0.001

Class 1 < Class 2 < Class 3

Concentration

1.63 ± 0.74

1.20 ± 0.42

2.16 ± 0.71

2.20 ± 0.70

450.304

 < 0.001

Class 1 < Class 2 = Class 3

Motor

1.32 ± 0.59

1.04 ± 0.21

1.56 ± 0.70

1.92 ± 0.69

281.430

 < 0.001

Class 1 < Class 2 < Class 3

Suicide ideation

1.16 ± 0.44

1 ± 0

1 ± 0

2.17 ± 0.48

3209.027

 < 0.001

Class 1 = Class 2 < Class 3

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