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Table 3 Binary logistic regression analysis of psychological symptoms of Chinese adolescents by screen and exercise time

From: Psychological symptoms are associated with screen and exercise time: a cross-sectional study of Chinese adolescents

Gender

Variable

Group

Emotional symptoms

Behavioral symptoms

Social adaption difficulties

Psychological symptoms

OR(95%CI)

P

OR(95%CI)

P value

OR(95%CI)

P value

OR(95%CI)

P

Boys

Scree time (h/d)

<1

1.24 (1.05–1.47)

0.01

1.07 (0.90–1.26)

0.46

1.16 (0.95–1.41)

0.15

1.13 (0.94–1.36)

0.20

1–2

1

 

1

 

1

 

1

 
 

>2

1.29 (1.04–1.59)

0.02

1.53 (1.25–1.88)

< 0.001

1.46 (1.15–1.86)

< 0.001

1.34 (1.07–1.68)

0.01

Exercise time (min/d)

<30

1.65 (1.40–1.94)

< 0.001

1.31 (1.11–1.54)

< 0.001

1.60 (1.32–1.93)

< 0.001

1.54 (1.29–1.84)

< 0.001

30–60

1

 

1

 

1

 

1

 
 

>60

0.99 (0.81–1.22)

0.95

1.07 (0.88–1.30)

0.52

0.95 (0.74–1.21)

0.67

1.00 (0.80–1.25)

0.98

Girls

Scree time (h/d)

<1

1.09 (0.92–1.28)

0.32

1.22 (1.03–1.45)

0.02

1.22 (1.00–1.50)

0.05

1.12 (0.93–1.34)

0.23

1–2

1

 

1

 

1

 

1

 
 

>2

1.43 (1.14–1.79)

< 0.001

1.43 (1.13–1.80)

< 0.001

1.41 (1.07–1.86)

0.01

1.40 (1.09–1.80)

0.01

Exercise time (min/d)

<30

1.70 (1.45–2.01)

< 0.001

1.45 (1.23–1.70)

< 0.001

1.92 (1.56–2.36)

< 0.001

1.84 (1.53–2.22)

< 0.001

30–60

1

 

1

 

1

 

1

 
 

>60

1.61 (1.21–2.14)

< 0.001

1.42 (1.07–1.90)

0.02

1.51 (1.05–2.17)

0.03

1.64 (1.19–2.25)

< 0.001

Total

Scree time (h/d)

<1

1.16 (1.03–1.31)

0.02

1.14 (1.01–1.29)

0.03

1.19 (1.03–1.37)

0.02

1.12 (0.99–1.28)

0.08

1–2

1

 

1

 

1

 

1

 
 

>2

1.34 (1.15–1.56)

< 0.001

1.51 (1.29–1.76)

< 0.001

1.46 (1.22–1.75)

< 0.001

1.38 (1.17–1.63)

< 0.001

Exercise time (min/d)

<30

1.63 (1.46–1.83)

< 0.001

1.34 (1.19–1.50)

< 0.001

1.65 (1.44–1.89)

< 0.001

1.62 (1.43–1.83)

< 0.001

30–60

1

 

1

 

1

 

1

 
 

>60

1.17 (0.99–1.38)

0.06

1.20 (1.02–1.41)

0.03

1.14 (0.93–1.40)

0.20

1.21 (1.01–1.45)

0.04