Table 2. Epstein-Barr seroprevalence among US children, ages 6–19, 2003–2010.

Characteristic	Prevalence estimate	95% CI	Prevalence ratio	(95% CI)
Total	66.5%	(64.3–68.7)
Age, years
6–8	54.08%	(50.2–57.9)
9–11	60.75%	(56.9–64.6)
12–14	64.15%	(60.4–67.9)
15–17	71.70%	(68.6–74.8)
18–19	82.90%	(80.0–85.9)
Sex
Female	68.9%	(66.3–71.6)	1.00
Male	64.2%	(61.7–66.8)	0.93	(0.89–0.97)
Race/ethnicity
White	56.9%	(54.1–59.8)	1.00
Black	83.1%	(81.1–85.1)	1.46	(1.38–1.55)
Mexican American	85.4%	(83.1–87.8)	1.50	(1.42–1.59)
Other race	72.9%	(68.7–77.0)	1.28	(1.19–1.38)
Household income
4th (Lowest) quartile	81.0%	(77.6–84.5)	1.50	(1.40–1.61)
3rd	75.7%	(72.3–79.2)	1.40	(1.30–1.51)
2nd	65.7%	(62.0–69.4)	1.22	(1.12–1.33)
1st (Highest) quartile	53.9%	(50.5–57.3)	1.00
Household education
<High school	83.5%	(80.5–86.5)	1.41	(1.34–1.49)
Complete high school	69.5%	(66.2–72.8)	1.18	(1.12–1.24)
>High school	59.0%	(56.5–61.5)	1.00
Country of Birth
US	65.2%	(62.9–67.4)	1.00
Other country	84.5%	(79.8–89.2)	1.30	(1.22–1.37)
Weight status
Under/normal	63.5%	(60.8–66.3)	1.00
Overweight	64.7%	(61.1–68.2)	0.98	(0.92–1.04)
Obese	71.7%	(66.5–76.8)	1.09	(1.01–1.17)
Smoking in household
No smoker in household	64.4%	(62.1–66.7)	1.00
Smoker in household	75.4%	(71.6–79.2)	1.17	(1.11–1.24)
Household size
<5	64.1%	(61.7–66.5)	1.00
5–6	67.6%	(64.7–70.5)	1.06	(1.02–1.11)
>6	82.7%	(78.9–86.5)	1.30	(1.24–1.37)