Table 1.

Descriptive Statistics, weighted: NHANES 1999–2004, Ages 6–16 (N=4667)

	Seropositive for CMV (n=2226)		Seronegative for CMV (n=2441)
	Mean or proportion	Linearized standard error	Mean or proportion	Linearized standard error	p
CMV optical density	1.727	0.028	0.269	0.006	<.001
In poverty	0.333	0.017	0.189	0.014	<.001
Food insecurity	0.186	0.014	0.102	0.010	<.001
Family income	$40,680	$1,626	$51,547	$1,794	0.000
Age	11.048	0.096	10.852	0.071	0.086
Male	0.505	0.017	0.545	0.014	0.109
Race/ethnicity
Black	0.193	0.019	0.124	0.013	<.001
Mexican American	0.189	0.019	0.086	0.014	<.001
White	0.481	0.027	0.700	0.022	<.001
Other race	0.137	0.019	0.090	0.015	<.001
Foreign born	0.101	0.012	0.034	0.005	<.001
Physical risk factors
BMI	20.274	0.172	20.220	0.160	0.801
Low birth weight (<2500g)	0.071	0.008	0.061	0.005	0.267
White blood count	7.026	0.073	7.081	0.080	0.511
Recently sick	0.300	0.011	0.287	0.014	0.417
Asthma/chronic respiratory problems	0.140	0.011	0.148	0.010	0.515
Smoker in present household	0.221	0.018	0.264	0.015	0.061