Table 1

Description of the total population and three study subpopulations (in percent)

Characteristics
Full sample of 2–18 year olds with dietary and medical data
Group a
Group b
Group c


(n = 7,672)
(n = 3,467)
(n = 1,064)
(n = 641)

Number of children represented
n = 63,642,060
n = 20,845,577
n = 7,681,593
n = 3,598,335
Females
49
48
50
43
Ethnic group




Non-Hispanic white
61
61
66
54
Non-Hispanic black
14
15
13
19
Mexican
12
12
9
14
Other
12
12
12
12
Household incomec




<1.3 PIR
39
39
38
44
1.3–1.84 PIR
12
13
13
11
1.85–3.4 PIR
19
20
19
18
>3.5 PIR
29
28
30
28
Weight statusd




Health-y weight
62
61
62
59
At risk for Overweight
15
15
16
16
Overweight
23
24
22
25

a Study populations:

Group a): Non-missing data: ≥ three criteria but missing blood glucose (2–18 year olds)

Group b) Non-missing data: ≥ three criteria & blood glucose, not overweight or obeseb (12–18 year olds)

Group c) Non-missing data: ≥ three criteria & blood glucose, not overweight or obeseb (12–18 year olds)

b Using International Obesity Task Force (IOTF) standards,

c Poverty Income Ratio (PIR),

d CDC gender specific BMI-for-Age growth chart: healthy weight (6–84th percentile), at risk for overweight (85–94th percentile), overweight (≥ 95th percentil)

Kranz et al. Nutrition Journal 2007 6:38   doi:10.1186/1475-2891-6-38

Open Data