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Table 1 Socio-demographic characteristics of the study sample

From: The association of smartphone screen time with sleep problems among adolescents and young adults: cross-sectional findings from India

Background variable

Adolescents

Young adults

Male

Female

Male

Female

Time spent on mobile phone

 None

28.44

39.94

9.00

28.41

  = <  2 hour

57.66

56.30

65.41

65.80

  > 2 hour

13.90

3.76

25.59

5.79

Marital status

 Married

1.32

17.98

11.38

62.73

 Single

98.68

82.02

88.62

37.27

Education

 Illiterate

1.73

6.31

3.06

14.44

 Primary & middle

50.06

41.57

18.25

29.39

 High school & inter & above

48.21

52.11

78.69

56.17

Social media exposure

 No

79.67

96.41

56.08

95.23

 Yes

20.33

3.59

43.92

4.77

Physical activity

 No

60.84

82.83

49.79

85.89

 Low activity

21.26

10.59

21.88

8.26

 High activity

17.9

6.58

28.33

5.85

Sedentary behaviour

 No

25.72

31.14

24.82

34.18

  < =14 hours

63.32

57.53

61.66

54.65

  > 14 hours

10.96

11.33

13.52

11.18

Sleep problem

 No

84.36

76.48

81.6

66.76

 Yes

15.64

23.52

18.4

33.24

Substance use

 No

79.67

96.41

56.08

95.23

 Yes

20.33

3.59

43.92

4.77

Number of friends

 No

1.43

4.7

1.71

10.83

 1-4

49.33

58.57

43.84

61.37

 More than 4

49.24

36.73

54.45

27.8

Parental coresidence

 No

1.91

2.02

3.05

1.48

 Only one parent

14.23

14.15

14.66

7.91

 Both

83.85

83.84

82.29

90.62

Paid work in last 12 months

 Yes

29.3

22.17

62.84

21.87

 No

70.7

77.83

37.16

78.13

Religion

 Hindu

84.93

80.34

84.94

78.56

 Non-Hindu

15.07

19.66

15.06

21.44

Caste

 SC/ST

25.77

26.29

29.19

26.09

 OBC

57.56

56.26

51.4

54.77

 Others

16.67

17.45

19.41

19.13

Mother’s education

 Illiterate

70.53

72.31

69.05

75.61

 Literate

29.47

27.69

30.95

24.39

Wealth Index

 Poor

35.39

35.81

26.46

29.63

 Middle

21.75

22.27

22.86

21.58

 Rich

42.86

41.92

50.68

48.79

Place of residence

 Urban

15.67

15.1

18.1

15.71

 Rural

84.33

84.9

81.9

84.29

State

 Uttar Pradesh

63.53

61.03

73.15

72.71

 Bihar

36.47

38.97

26.85

27.29

Total(N)

2399

3432

2029

8432