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Objective: We compared the impact of the Federal Alcoholic Beverage Warning Label on multiparae (women with at least one previous live birth) and nulliparae (women with no previous live births). The label, implemented on November 18, 1989, urges women not to drink during pregnancy because of the risk of birth defects. If multiparae drank during prior pregnancies, delivering apparently normal babies, we hypothesized that the warning might be less salient for them., Method: We studied 17,456 inner city black gravidas seen between September 1986 and September 1993 at one antenatal clinic. Time series analysis (ARIMA) examined trends in monthly means of antenatal drinking scores (alcohol consumption adjusted for weeks' gestation, age, parity and periconceptional drinking)., Results: For nulliparae (n = 7,349), reported drinking began to show a significant decline in June 1990, 7 months after the implementation of the warning label (t = 2.00, p < .04). In contrast, multiparae (n = 10,107) showed no change in reported drinking (t = 1.23) postlabel., Conclusions: Given previous results that multiparae drink more and that heavier drinkers are ignoring the warning label, these data are very distressing and suggests the importance of targeting multiparae for intensive prevention efforts.

In a sample of over 12,000 African-American gravidas, we tested the hypothesis that the Federal Beverage Labeling Act of 1988 has decreased antenatal drinking. Results of time series analysis indicated a 7-month lag in the impact of the alcohol warning label. Controlling for population changes, antenatal drinking began to fall as of June 1990. However, this decrease was small in size and did not impact on the heaviest drinkers. Seasonal trends in drinking were also detected, with peaks around the end of the year and the summer.

This article presents data on the awareness of the alcohol beverage warning label among a sample of 5,169 inner city African-American gravidas seeking prenatal care. While the label law was implemented in November 1989, a significant increase in knowledge of the label did not occur until March 1990. Women who predominantly consumed wine coolers and beer, and those under age 30 were more likely to know about the label than their counterparts.