A comparison of prenatal drinking in two recent samples of adolescents and adults.

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Abstract
The drinking patterns of 124 pregnant teenagers are described and compared with those of 267 pregnant adults attending the same prenatal clinic in Pittsburgh. Adults had a significantly higher average daily volume of alcohol prior to pregnancy than adolescents, but that higher level was no longer significant during pregnancy. However, the rate of binge drinking during the first trimester was higher in the teenage sample than in the adult sample. Rates of binge drinking and heavy drinking were highest among the white teenage group. Use of marijuana and cocaine/crack decreased precipitously during pregnancy for both teenagers and adults. Tobacco use also decreased among the adults, but increased from 56% to 71% during pregnancy in the teenage sample. Based on our findings, patterns of drinking among adult pregnant women do not generalize to pregnant adolescents. Offspring of white adolescents, in particular, may be at higher risk for intermittent high peak alcohol exposure farther into the pregnancy than are offspring of older women.

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