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Table 1 General characteristics of participants according to gender

From: Association of screen time and physical activity with health-related quality of life in Iranian children and adolescents

Variables

Girls

Boys

Total

P value

Age (Year)a

12.6(3.3)

12.4(3.3)

12.5(3.3)

< 0.001

Height (cm)a

146.2(16.1)

148.5(19.7)

147.4(18.1)

< 0.001

Weight (Kg)a

41.9(15.5)

43.1(18.3)

42.5(17)

< 0.001

BMI (kg/m2)a

18.9(4.5)

18.7(4.4)

18.8 (4.4)

< 0.001

BMI scorea

0.03(1.01)

− 0.03(0.98)

< 0.001(1)

< 0.001

ST(hour)a

1.97(1.4)

1.8(1.1)

1.9 (1.2)

< 0.001

PC time (hour)a

1.1 (1.4)

0.76 (1.1)

0.93(1.3)

< 0.001

TV time (hour)a

2.6(1.8)

2.5(1.4)

2.6(1.6)

< 0.001

PA scorea

1.8(0.73)

2.2(0.76)

2(0.78)

< 0.001

Psychosocial QoL scorea

74.7(17.9)

81(14.3)

77.9(16.5)

< 0.001

School QoL scorea

71.4(17.3)

79.8(14.3)

71.7(16.4)

< 0.001

Social QoL scorea

90(14.1)

90(14.4)

90(14.25)

0.32

Emotional QoL scorea

75.4(20.2)

81(18.2)

78.2(19.5)

< 0.001

Physical QoL scorea

83.9(14.9)

84.6(14.4)

84.2(14.7)

< 0.001

Total QoL scorea

75.6(17.8)

81(13.9)

78.3(16.17)

< 0.001

PA category (n)b

 Active

7485(66.6)

9992(86.2)

17,477(76.5)

< 0.001

 Inactive

3758(33.4)

1605(13.8)

5363(23.5)

Region (n)b

 Urban

8387(75)

8271(72)

16,658(73.5)

0.17

 Rural

2796(25)

3217(28)

6013(26.5)

PC category (n)b

  < 2 h

6971 (75.6)

7412(83.9)

14,383(79.7)

< 0.001

  > =2 h

2247(24.4)

1418(16.1)

3665(20.3)

TV category (n)b

  < 2 h

3193(30.1)

3273(29.7)

6466(29.9)

0.64

  > =2 h

7405(69.9)

7756(70.3)

15,161(70.1)

ST category (n)b

  < 2 h

6151(57.3)

6768(60.8)

12,920(59.1)

0.0057

  > =2 h

4591(42.7)

4364(39.2)

8955(40.9)

General obesity (n)b

 No

10,743(94.7)

10,813(92.3)

(21556)93.5

< 0.001

 Yes

594(5.3)

898(7.7)

1492(6.5)

SES (n)b

 Low

3136(33.6)

3307(33.8)

6443(33.4)

0.80

 Moderate

3175(33.5)

3250(33.2)

6425(33.4)

 High

3174(33.5)

3225(33)

6399(33.2)

  1. BMI body mass index, ST screen time, PC personal computer, TV television, PA physical activity, QoL quality of life, SES socioeconomic status
  2. aData are presented as mean (SD)
  3. bData are presented as number (%)