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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Acad Pediatr. 2015 Aug 18;16(2):192–199. doi: 10.1016/j.acap.2015.06.009

Table 1.

Demographic Characteristics by Family Income, 1998-2011*

Low Income (n=65,496) Middle Income (n=33,246)

Unweighed N Weighted % Unweighed N Weighted %
Child's Age
    0-4 18,895 30.4 7,831 24.9
    5-9 19,783 29.7 9,352 27.9
    10-13 14,480 21.3 7,915 23.2
    14-17 12,338 18.6 8,148 24.0
Parent's Age
    ≤24 7,247 11.7 1,390 4.0
    24-44 51,846 78.5 26,632 79.8
    ≥45 6,403 9.8 5,224 16.2
Region
    Northeast 8,294 15.1 4,878 16.7
    Midwest 10,707 20.2 7,397 24.5
    South 26,327 38.9 11,715 35.5
    West 20,168 25.9 9,256 23.3
Child's Health Status^
    Excellent/Very Good 47,802 75.2 27,506 84.3
    Good/Fair/Poor 17,677 24.8 5,729 15.7
Child's Race/Ethnicity
    Non-Hispanic, White 16,388 40.4 17,005 66.2
    Non-Hispanic, Non-White 18,577 27.7 7,278 17.9
    Hispanic 30,531 31.9 8,963 15.9
Parent's Education^
    ≥12 years 41,201 71.0 29,929 93.7
    <12 years 24,045 29.0 3,242 6.3
Family composition
    One parent 28,003 42.1 7,078 20.7
    Two parents 37,493 57.9 26,168 79.4
Parent's employment^
    Employed 49,903 78.3 32,068 97.1
    Unemployed 15,492 21.7 1,161 2.9

Data Source: Medical Expenditure Panel - Household Survey

*

Weighted percentages are reported for the entire study period (1998-2011) as one pooled sample

^

Sample N's do not add up to total unweighted column N due to exclusion of a small number of missing responses Column percentages = approximately 100% (rounded to nearest tenth of a percent).

Note: Low Income = <200% FPL (federal poverty level); Middle Income = 200 - <400% FPL. The FPL in 2011 was $22,350.