TABLE 1

Characteristics of Infants in the WIC-PC Survey in Selected Years

2000200420102014
n1 847 3242 018 2352 319 7122 340 611
High weight-for-length, %a13.414.514.512.3
Weight-for length z-score0.760.830.860.76
Age, mo13.713.614.213.5
Girls, %49.449.749.349.2
Race-ethnicity, %b
 White38.335.332.331.2
 Black21.119.420.021.5
 Hispanic35.439.741.841.4
 Asian/Pacific Islander3.53.43.84.5
 American Indian/Alaskan
Native0.91.01.21.2
 Unknown0.81.20.90.1
Relative income, %c
 <5026.228.631.134.5
 50–9929.728.632.433.0
 100–13416.114.914.313.1
 ≥13515.514.714.811.3
 Unknown12.513.27.38.0
  • a High weight-for-length is defined as ≥2 SDs above the median in the WHO growth charts.

  • b Values for race-ethnicity and relative income represent column percentages.

  • c For a family of 4 in the contiguous 48 states, the relative income (expressed as a percentage of the poverty level) cutpoints correspond to incomes of $11 925 (50%), $23 850 (100%), and $32 197 (135%).