Table 3 Demographic features of various classes (n = 1221).

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

Basic Information

Overall (n = 1221)

Class 1 (n = 678)

Class 2 (n = 374)

Class 3 (n = 168)

x2/F

p

Age

19.57 ± 1.56

19.56 ± 1.58

19.55 ± 1.43

19.70 ± 1.72

0.597

0.550

Gender (male)

46.19%

48.53%

40.11%

50.30%

8.202

0.017

BMI (kg/m2)

21.95 ± 4.39

21.99 ± 4.51

21.77 ± 4.15

22.19 ± 4.45

0.608

0.545

Registered residence (city)

57.49%

60.91%

52.41%

55.03%

7.627

0.022

Only child (yes)

54.63%

50.29%

59.63%

60.95%

11.627

0.003

Single parent family (yes)

8.52%

7.67%

8.82%

11.24%

2.281

0.320

Drinking habit (yes)

20.72%

10.48%

20.86%

27.81%

6.575

0.037

Smoking habit (yes)

3.11%

3.24%

2.41%

4.14%

1.252

0.535

Family relations

    

42.211

 < 0.001

 Amiable

48.48%

56.19%

37.97%

40.83%

  

 Normal

43.98%

38.64%

52.41%

46.75%

  

 Regular conflicts

7.53%

5.16%

9.63%

12.43%

  

Study pressure

    

35.821

 < 0.001

 Easy

20.15%

25.37%

14.17%

12.43%

  

 Normal

58.15%

57.23%

60.43%

56.80%

  

 Hard

21.70%

17.40%

25.40%

30.77%

  

Interpersonal relationships

    

65.076

 < 0.001

 Good

76.00%

84.51%

64.17%

68.05%

  

 Normal

22.28%

14.16%

32.89%

31.36%

  

 Bad

1.72%

1.33%

2.94%

0.06%

  

Social activities

    

12.577

0.014

 > 3times/week

4.01%

4.72%

2.67%

4.14%

  

 ≤ 3times/week

79.69%

81.86%

78.61%

73.37%

  

 Almost 0

16.30%

13.42%

18.72%

22.49%

  
  1. Comparing the demographic features of university students with different types of depressive symptoms, as shown in Table 3, except for age, BMI, registered residence, single parent family and smoking habit, other indicators have significant differences (all p < 0.05).