Table 1.
aKappa = 0.70 (0.69, 0.71)
bThe percentages were weighted to adjust for survey design, noncoverage, and nonresponse.
cThe total sample included 39,345 women, of which 7,116 reported smoking during pregnancy on at least one data source (i.e., birth certificate or PRAMS questionnaire).
PRAMS = Pregnancy Risk Assessment Monitoring System