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Table 1 General Information of Study Observation

From: Did the increase in sitting time due to COVID-19 lead to obesity in adolescents?

  

2016

2017

2018

2019

2020

2021

  

Percent

SD

Percent

SD

Percent

SD

Percent

SD

Percent

SD

Percent

SD

Total (N)

 

65,212

 

61,861

 

59,734

 

57,069

 

54,809

 

54,712

 

BMI (mean, SD)

 

(21.1 ± 0.03)

 

(21.24 ± 0.03)

 

(21.32 ± 0.03)

 

(21.35 ± 0.03)

 

(21.5 ± 0.03)

 

(21.61 ± 0.03)

 

Age (mean, SD)

 

(15.11 ± 0.02)

(15.14 ± 0.02)

(15.16 ± 0.02)

(15.08 ± 0.02)

(15.19 ± 0.02)

(15.23 ± 0.02)

 

Male

(15.12 ± 0.04)

(15.15 ± 0.04)

(15.17 ± 0.04)

(15.09 ± 0.04)

(15.2 ± 0.04)

(15.24 ± 0.04)

 

Female

(15.1 ± 0.04)

(15.13 ± 0.04)

(15.15 ± 0.04)

(15.07 ± 0.05)

(15.17 ± 0.04)

(15.21 ± 0.04)

Sex

Male

52.09

1.32

51.99

1.27

51.98

1.24

51.92

1.22

51.84

1.15

51.64

1.11

 

Female

47.91

1.32

48.01

1.27

48.02

1.24

48.08

1.22

48.16

1.15

48.36

1.11

School grade

7th grade

14.72

0.25

14.88

0.26

14.56

0.25

15.99

0.28

17.88

0.29

16.99

0.28

 

8th grade

14.39

0.23

15.38

0.26

15.7

0.27

15.35

0.26

16.2

0.27

17.86

0.26

 

9th grade

16.35

0.26

15.06

0.25

16.25

0.27

16.58

0.27

15.58

0.25

16.19

0.26

 

10th grade

18.46

0.28

17.14

0.25

15.93

0.25

17.17

0.26

16.89

0.28

15.63

0.25

 

11st grade

17.94

0.27

18.99

0.28

17.78

0.29

16.45

0.26

17.06

0.27

16.59

0.27

 

12nd grade

18.14

0.28

18.55

0.28

19.78

0.31

18.46

0.3

16.38

0.28

16.74

0.28

School type

Mixed-sex school

62

1.65

63.73

1.6

64.85

1.61

65.85

1.59

66.53

1.53

69.58

1.53

 

Boys-only school

19.22

1.45

18.46

1.4

17.87

1.39

17.2

1.33

17.29

1.34

14.57

1.2

 

Girls-only school

18.77

1.45

17.8

1.39

17.29

1.36

16.95

1.35

16.18

1.3

15.85

1.3

GPA

High

10.16

0.14

9.88

0.15

9.81

0.14

9.73

0.14

10

0.16

9.84

0.16

 

Upper middle

23.15

0.19

22.27

0.2

22.08

0.21

22.08

0.2

23.01

0.23

22.01

0.2

 

Middle

28.7

0.19

28.82

0.2

29.45

0.2

30.21

0.21

30.16

0.21

31.03

0.21

 

Lower middle

25.16

0.18

25.65

0.19

25.49

0.19

24.93

0.21

24.65

0.22

24.48

0.22

 

Low

12.82

0.18

13.39

0.19

13.16

0.18

13.05

0.19

12.19

0.2

12.64

0.18

Region

Metropolitan

51.64

0.69

51.38

0.73

51.01

0.73

50.68

0.74

50.34

0.75

50.01

0.74

 

City area

43.41

0.7

44.03

0.74

44.25

0.75

44.76

0.77

45.13

0.76

45.53

0.75

 

Rural

4.95

0.33

4.59

0.43

4.74

0.42

4.56

0.32

4.53

0.31

4.46

0.27

Smoking status

None / month

93.86

0.21

93.84

0.2

93.49

0.2

93.42

0.19

95.63

0.15

95.58

0.14

 

More than 1 / month

6.14

0.21

6.16

0.2

6.51

0.2

6.58

0.19

4.37

0.15

4.42

0.14

Skipping breakfast

0–4 days / week

71.81

0.27

68.54

0.28

66.48

0.28

64.31

0.29

62.75

0.3

61.97

0.29

 

5–7 days / week

28.19

0.27

31.46

0.28

33.52

0.28

35.69

0.29

37.25

0.3

38.03

0.29

Average sleep hour per week (mean, SD)

 

(6.3 ± 0.02)

(6.27 ± 0.02)

(6.25 ± 0.02)

(6.3 ± 0.02)

(6.22 ± 0.01)

(6.17 ± 0.01)

Household income

High

37.12

0.37

40.32

0.41

40.77

0.37

39.66

0.36

39.85

0.41

40.15

0.42

 

Middle

47.4

0.29

45.75

0.31

46.15

0.29

47.85

0.29

47.57

0.33

49

0.33

 

Low

15.47

0.2

13.93

0.22

13.08

0.2

12.49

0.19

12.58

0.19

10.85

0.18