Table 4.
aData are weighted to adjust for sample design, nonresponse, and noncoverage. Sample size varies for each item due to missing values.
bDid not include women with more than one type of insurance and self-insured due to small numbers
cNew item on the U.S. 2003 birth certificate
PPV = positive predictive value
NPV = negative predictive value
NYC = New York City
CI = confidence interval