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Table 1 Distribution of the study population characteristics

From: Pre-pregnancy obesity and non-adherence to multivitamin use: findings from the National Pregnancy Risk Assessment Monitoring System (2009–2011)

  Total Weighted N = 5 032 562
  %
Age
   ≤ 19 9.3
  20–24 22.9
  25–29 29.7
  30–35 24.7
   > 35 13.9
Race/Ethnicity
  White, non-Hispanic 60.4
  Black, non-Hispanic 13.7
  Hispanic 17.8
  Other, non-Hispanic 8.2
Married 61.0
Education
   < High school 15.8
  High school 26.3
   > High school 57.9
Income
   < $20,000 36.2
  $20,000–34,999 17.0
  $35,000–49,999 10.3
  v ≥ $50,000 36.5
Pre-pregnancy Insurance
  Private 55.9
  Medicaid 15.6
  Other 1.9
  Multiple 3.4
  No insurance 23.2
Previous live birth
  0 42.0
  v1 - 2 47.5
   ≥ 3 10.6
Pre-pregnancy diabetes 2.2
Pre-pregnancy hypertension 8.9
Unintended pregnancy 42.5
Pre-pregnancy smoking 24.6
Average number of alcohol drink/week
  None 17.0
  Up to 3 67.7
  4 or more 15.3
Pre-pregnancy dieting 28.5
Pre-pregnancy exercising 42.2
Intimate partner violence 3.0
  1. Weighted N = adjusted for the complex sampling design and represents the total population that the sampled was derived from