Table 1.

Characteristics of children ages 5-16 years by C-reactive protein level in NHANES 1999-2002.

	C-reactive protein levels (mg/L)
	Low (<1.0)	Average (1.0-3.0)	High (>3.0)	P value, two sided
	(n = 2939)	(n = 718)	(n = 453)
	mean (SD)
C-reactive protein levels (mg/L)	0.29 (0.23)	1.8 (0.59)	8.6 (8.4)	-
Age (years)	11.4 (3.3)	11.6 (3.3)	11.6 (3.3)	0.084
Height (inches)	58.8 (7.6)	59.4 (7.3)	59.5 (7.2)	0.022
Height-for-age Z-Score	0.12 (1.1)	0.21 (1.1)	0.27 (1.0)	0.002
BMI (Kg/m2)	19.6 (4.1)	23.8 (5.9)	25.2 (7.7)	<0.0001
BMI Z-score	0.29 (1.0)	1.2 (1.0)	1.3 (1.2)	<0.0001
Waist circumference (cms)	68.8 (12.1)	79.4 (16.5)	83.3 (20.4)	<0.0001
Sedentary behavior (hrs/day)*	2.9 (1.5)	2.9 (1.6)	3.0 (1.5)	0.728
Food groups (servings/day)
Dairy	2.0 (1.6)	1.8 (1.4)	1.9 (1.6)	0.012
Grains	7.1 (3.8)	6.8 (3.6)	6.3 (3.5)	<0.0001
Fruit	1.5 (2.0)	1.3 (1.6)	1.4 (1.9)	0.384
Vegetables	2.6 (2.4)	2.4 (2.1)	2.2 (2.2)	0.002
Meat/Other Proteins	4.0 (3.2)	4.0 (3.2)	3.9 (3.1)	0.380
Energy intake (kcal)	2103.5 (14.7)	2011.9 (29.8)	1930.4 (37.5)	<0.0001
Energy adjusted macronutrients
% calories from fat	32.8 (7.5)	32.7 (8.2)	32.2 (8.4)	0.213
% calories from carbohydrates	54.7 (9.3)	54.6 (10.0)	54.8 (11.0)	0.917
% calories from protein	13.7 (3.9)	13.8 (4.1)	14.1 (4.4)	0.064
fiber intake/1000 kcal of energy	6.4 (2.9)	6.3 (2.8)	6.2 (3.1)	0.163
	No. (row percent)
Gender
Girls	1435 (69.9)	373 (18.2)	245 (11.9)	0.057
Boys	1504 (73.1)	345 (16.8)	208 (10.1)
Race/Ethnicity				<0.0001
Non-Hispanic Whites	885 (78.7)	144 (12.8)	96 (8.5)
Non-Hispanic Blacks	922 (72.0)	227 (17.7)	131 (10.2)
Hispanic	1132 (66.4)	347 (20.4)	226 (13.3)
Socioeconomic Status				0.006
Low	997 (69.1)	259 (17.9)	188 (13.0)
High	1942 (72.8)	459 (17.2)	265 (9.9)

Abbreviations: BMI, body mass index; NHANES, National Health and Nutrition Examination Survey; SD, standard deviation; kcal, kilocalories of energy

* The number of usual hours spent watching television, playing video games or using a computer