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Table 1 Characteristics of subjects 5–17 years old, NSCH 2007

From: Factors associated with attention deficit/hyperactivity disorder among US children: Results from a national survey

Variable

N (Unweighted)

Weighted % ± SE

ADHD classification

 Yes

7137

10.08 ± 0.28

 No

61378

89.91 ± 0.28

BMI

  

 Underweight

2186

5.16 ± 0.27

 Normal

29121

63.19 ± 0.60

 Overweight

6754

15.26 ± 0.44

 Obese

6040

16.37 ± 0.48

Sex

 Male

35677

51.13 ± 0.48

 Female

32863

48.86 ± 0.48

Age: Median(IQR)

 

10.63 (6.51)

Depression

 Yes

3088

4.50 ± 0.21

 No

65481

95.49 ± 0.21

Anxiety

 Yes

4125

5.31 ± 0.21

 No

64428

94.68 ± 0.21

Race/Ethnicity

 Non- Hispanic White

46739

56.75 ± 0.51

 Non-Hispanic Black

6908

14.93 ± 0.33

 Hispanic

8006

19.77 ± 0.50

 Other

5894

8.53 ± 0.29

Poverty

  

 ≤200%

17008

37.68 ± 0.50

 >200%

45873

62.31 ± 0.50

Family member’s Smoking status

 By any one in household

17221

26.37 ± 0.42

 No one Smoke

50901

73.62 ± 0.42

Highest level of Education in the household

 Less than/High School Education

15624

33.16 ± 0.49

 More than High School Education

52204

66.83 ± 0.49

Family structure

 Two parent -biological/step/adopted

51682

73.19 ± 0.43

 Other - single mother/father/other

16532

26.80 ± 0.43

Healthcare coverage

 Yes

63154

90.43 ± 0.31

 No

5343

9.56 ± 0.31

Participation in Sports

 Yes

40673

58.30 ± 0.50

 No

23354

41.69 ± 0.50

Participation in Clubs

 Yes

40352

56.89 ± 0.51

 No

23649

43.10 ± 0.51

Average computer usage during a weekday

 ≥1 hour

30744

61.36 ± 0.54

 <1 hour

19811

38.64 ± 0.54

Average TV usage during weekday

 ≥1 hour

50080

83.99 ± 0.39

 <1 hour

9898

16.01 ± 0.39

Current Medication Use (in ADHD group)

 Yes

3735

66.72 ± 1.65

 No

1690

33.28 ± 1.65

  1. Unweighted N = 68634.
  2. SE: Standard Error; IQR: Inter-Quartile Range.