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Table 4 Adjusted odds ratios for factors associated with ADHD classification, NSCH 2007

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

Variable

ADHD

OR

LCL

UCL

BMI

Underweight

0.64*

0.43

0.95

Normal

Ref

Ref

Ref

Overweight

1.05

0.81

1.36

Obese

1.06

0.81

1.39

Sex

Male

2.82*

2.26

3.52

Female

Ref

Ref

Ref

Age

1.00

0.95

1.04

Depression

Yes

5.28*

3.65

7.64

No

Ref

Ref

Ref

Anxiety

Yes

3.04*

2.20

4.19

No

Ref

Ref

Ref

Race/Ethnicity

Non- Hispanic White

Ref

Ref

Ref

Non-Hispanic Black

0.72*

0.53

0.98

Hispanic

0.65*

0.43

0.95

Other

0.78

0.54

1.14

Poverty

≤200%

1.07

0.84

1.37

>200%

Ref

Ref

Ref

Family members’ smoking status

At least one member smokes

1.33*

1.08

1.64

No one smokes

Ref

Ref

Ref

Highest level of Education in the household

Less than/High School Education

Ref

Ref

Ref

More than High School Education

1.11

0.89

1.38

Family structure

Two parent -biological/step/adopted

0.70*

0.56

0.87

Other - single mother/father/other

Ref

Ref

Ref

Healthcare coverage

Yes

1.45*

1.00

2.08

No

Ref

Ref

Ref

Participation in Sports

Yes

0.80*

0.65

0.98

No

Ref

Ref

Ref

Participation in Clubs

Yes

0.86

0.71

1.04

No

Ref

Ref

Ref

Average computer usage during a weekday

≥1 hour

1.06

0.85

1.33

<1 hour

Ref

Ref

Ref

Average TV usage during weekday

≥1 hour

1.32*

1.03

1.70

<1 hour

Ref

Ref

Ref

  1. * Significant association at 0.05 level.
  2. OR: Odds Ratio; LCL: 95% Lower Confidence Limit; UCL: 95%Upper Confidence Limit; Ref: Reference Category.