Cross-Sectional Study of Polybrominated Flame Retardants and Self-Reported Attention Deficit Hyperactivity Disorder in US Youth Aged 12–15 (NHANES 2003-2004)
Table 2
Prevalence of ADHD diagnosis by a health care professional among youth 12–15 years old in NHANES 2003-2004.
Variable
Number of children with ADHD
Number of children without ADHD
Weighted percent with ADHD (95% CI)
value
Total
35
346
13.57 (8.06, 21.94)
Age (years)
0.48
12-13
23
179
8.37 (3.95, 16.88)
14-15
12
167
5.20 (3.21, 8.31)
Sex
0.10
Female
9
189
4.12 (1.33, 12.05)
Male
26
157
9.45 (5.58, 15.56)
Race
0.21
Mexican American
6
121
0.69 (0.21, 2.21)
Other, including other Hispanic and multiracial
2
21
1.25 (0.26, 5.69)
Non-Hispanic white
16
74
10.44 (5.56, 18.78)
Non-Hispanic black
11
130
1.19 (0.69, 2.06)
PIR
0.54
0–0.99
5
115
2.37 (0.74, 7.28)
≥1
29
215
10.80 (5.94, 18.85)
Missing
1
16
Prenatal ETS exposure
0.04
Yes
21
288
4.66 (2.24, 9.44)
No
12
55
7.57 (4.71, 11.96)
Missing
2
3
Current ETS exposure in home
0.50
Yes
25
266
4.22 (1.94, 8.92)
No
10
76
9.40 (5.39, 15.88)
Missing
0
4
Covered by health insurance
<0.001
Yes
33
289
13.40 (7.89, 21.83)
No
2
53
0.22 (0.19, 0.26)
Missing
0
4
Birthweight
0.08
≥2,500 g
27
307
10.35 (5.34, 19.10)
<2,500 g
8
38
3.23 (1.60, 6.40)
Missing
0
1
Attended preschool/daycare
0.02
Yes
29
220
11.39 (6.81, 18.45)
No
5
125
2.08 (0.65, 6.49)
Missing
1
1
Body Mass Index (BMI)
0.05
Underweight/normal
20
224
5.87 (3.46, 9.79)
Overweight
7
73
3.65 (1.45, 8.89)
Obese
8
46
4.09 (1.44, 11.07)
Missing
0
3
Blood lead quartiles
0.49
1st quartile
10
146
4.43 (1.73, 10.87)
2nd quartile
10
96
3.28 (1.24, 8.37)
3rd quartile
4
53
2.24 (0.71, 6.82)
4th quartile
3
28
0.82 (0.15, 4.39)
Missing
8
23
value for Chi-square analysis, Poverty Index Ratio, and Environmental Tobacco Smoke.
