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. 2016 Jul 8;11(7):e0159087. doi: 10.1371/journal.pone.0159087

Table 1. Sample characteristics (n = 9,354).

n (%)
Child characteristics
    Age (montds)
        19–23 2,701 (30)
        24–29 2,945 (35)
        30–35 3,708 (36)
    Sex
        Male 4,812 (53)
        Female 4,542 (47)
    Race/ethnicity
        Non-Hispanic white 6,344 (61)
        Non-Hispanic black 1,002 (14)
        Hispanic 1,004 (15)
        Other 1,004 (10)
    Vaccines for Children eligibility
        Yes 3,109 (45)
        No 6,194 (54)
        Not reported 51 (<1)
Parent characteristics
    Relationship to child
        Mother/female guardian 7,339 (78)
        Father/male guardian 1,522 (17)
        Other 493 (5)
    Mother’s age
        ≤ 19 years 139 (3)
        20–29 years 2,676 (41)
        ≥ 30 years 6,539 (57)
    Mother’s education
        12 years or less 2,073 (39)
        Some college, no degree 2,508 (24)
        College degree or more 4,773 (38)
Household characteristics
    Region
        Northeast 1,767 (18)
        Midwest 2,212 (24)
        South 3,419 (39)
        West 1,956 (19)
    Annual incomea
        Below poverty level 1,631 (29)
        Above poverty level, ≤$75,000 3,420 (37)
        >$75,000 4,056 (31)
        Not reported 247 (3)

Note. Table shows raw frequencies and weighted percentages. Percentages may not total 100% due to rounding.

a Poverty level based on 2010 U.S. Census poverty threshold.