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Table 3 Comparison of cluster A and B PD scores on gender, and among grades with gender as covariate

From: Screening cluster A and cluster B personality disorders in Chinese high school students

 

Total n = 3552

Gender

Grades

  

Male n = 1790

Female n = 1762

t

Cohen’s d

Freshman n = 1413

Sophomore n = 1254

Junior n = 885

F

PPD

2.70 ± 1.92

2.81 ± 1.93

2.58 ± 1.90

3.679*

0.120

2.75 ± 1.92

2.69 ± 1.93

2.61 ± 1.89

1.320

SPD

2.12 ± 1.67

2.16 ± 1.80

2.08 ± 1.51

1.551

0.048

2.21 ± 1.70a

2.17 ± 1.70b

1.91 ± 1.53

9.025*

STPD

3.24 ± 2.31

3.52 ± 2.37

2.96 ± 2.21

7.341*

0.244

3.32 ± 2.33

3.26 ± 2.30

3.09 ± 2.28

2.692

BPD

3.11 ± 2.34

3.11 ± 2.38

3.10 ± 2.30

.086

0.004

3.25 ± 2.41a

3.14 ± 2.32b

2.83 ± 2.25

8.935*

APD

2.13 ± 1.834

2.38 ± 1.98

1.86 ± 1.63

8.604*

0.287

2.21 ± 1.89a

2.25 ± 1.88b

1.82 ± 1.62

15.231*

HPD

3.52 ± 1.92

3.55 ± 2.01

3.49 ± 1.82

.826

0.031

3.54 ± 1.95

3.52 ± 1.92

3.49 ± 1.87

0.199

NPD

3.67 ± 2.23

3.76 ± 2.31

3.57 ± 2.14

2.650*

0.085

3.75 ± 2.27

3.61 ± 2.24

3.61 ± 2.14

1.826

  1. Notes: *P < 0.05; a Compared with Junior P < 0.05; b Compared with Junior P < 0.05.