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Vomiting in pregnancy.

Vomiting in pregnancy

Vomiting is a routine part of many pregnancies; historical mention of it dates back to 2000 B.C. But its epidemiology is not well documented, so researchers at the National Institutes of Health in Bethesda, Md., studied data on 9,098 pregnancies to see what lifestyle and socioeconomic factors were associated with vomiting.

They found more than half the participants in the study vomited during the first trimester of pregnancy. First-time mothers, women under 20, women with less than 12 years of education, nonsmokers and women who weighed more than 170 pounds were more likely to report vomiting, as were women who had vomited in previous pregnancies, they report in the November 1985 OBSTETRICS AND GYNECOLOGY.

While the researchers found out who was more likely to vomit, what remains to be seen is why it occurs more often in certain groups.
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Publication:Science News
Date:Jan 11, 1986
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