Table 1.

Seroprevalence of Measles, Mumps, Rubella and Varicella Antibodies by Demographic Characteristics: National Health and Nutrition Examination Survey, 2009–2010.

	n	Measles		Mumps		Rubella		Varicella
		% (95% CI)	P Value	% (95% CI)	P Value	% (95% CI)	P Value	% (95% CI)	P Value
Overall	5054	92.0 (90.9–93.0)		87.6 (85.8–89.2)		95.3 (94.3–96.2)		97.8 (97.1–98.3)
Age
6–11 years (ref)	960	96.8 (94.5–98.4)		91.9 (89.3–94.1)		99.1 (97.9–99.7)a		98.0 (96.0–99.1)b
12–19 years	1172	93.2 (89.8–95.7)	<.05	86.9 (83.2–90.1)	<.05	97.0 (95.5–98.2)	<.01	97.1 (95.7–98.2)	NS
20–29 years	950	93.3 (90.9–95.3)	<.05	87.7 (84.8–90.3)	<.05	95.8 (94.2–97.0)	<.001	97.6 (96.0–98.7)	NS
30–39 years	937	87.9 (84.8–90.6)	<.001	85.6 (81.5–89.2)	<.01	93.4 (90.9–95.3)	<.001	97.0 (94.6–98.5)	NS
40–49 years	1035	91.2 (89.0–93.2)	<.001	87.8 (84.9–90.2)	<.05	93.8 (91.8–95.4)	<.001	98.9 (97.8–99.6)b	NS
Sex
Male	2483	91.5 (89.2–93.5)	NS	86.8 (84.8–88.7)	NS	93.5 (92.2–94.6)	<.001	97.6 (96.8–98.3)	NS
Female	2571	92.4 (91.0–93.7)		88.4 (86.3–90.2)		97.2 (96.1–98.0)		97.9 (97.2–98.4)
Race/Ethnicity
Non-Hispanic white (ref)	1971	91.3 (89.5–92.9)		85.8 (83.1–88.1)		95.0 (93.6–96.2)		98.5 (97.9–99.0)
Non-Hispanic black	928	96.2 (94.9–97.2)	<.001	92.0 (89.1–94.3)	<.001	97.2 (95.9–98.2)	<.01	96.3 (95.0–97.4)	<.01
Mexican American	1232	87.0 (84.9–88.9)	<.01	89.0 (87.3–90.6)	<.05	94.2 (92.0–95.9)	NS	97.8 (96.6–98.7)	NS
Birthplace
Non-US	1099	92.2 (89.6–94.3)	NS	92.3 (89.9–94.2)	<.001	95.8 (94.1–97.2)	NS	95.6 (93.7–97.1)	<.01
US	3951	91.9 (90.5–93.2)		86.6 (84.7–88.4)		95.2 (94.0–96.2)		98.2 (97.6–98.7)

Abbreviations: CI, confidence interval; NS, not significant (P > .05); ref, reference group.

^a Estimates unstable based on <10 negative sample persons and relative standard error >40%.

^b Estimates unstable relative standard error >30%.