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Table 2 Descriptive statistics and intercorrelations between variables

From: Mobile phone addiction and depression among Chinese medical students: the mediating role of sleep quality and the moderating role of peer relationships

Variable

M

SD

Depression

Mobile phone addiction

Poor sleep quality

Peer relationships

Depression

5.09

4.48

1.00

   

Mobile phone addiction

2.57

0.72

0.37a

1.00

  

Poor sleep quality

4.18

2.86

0.62a

0.27a

1.00

 

Peer relationships

47.02

11.98

−0.37a

−0.14a

-0.24a

1.00

  1. aCorrelation is significant at the 0.01 level (2-tailed)