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ORLANDO, FLA. -- Fetal gender may affect maternal asthma symptoms during pregnancy, according to results of a prospective study of 153 pregnant women.
"We found if you had a female baby, things were happening, and the asthma tended to be worse. We found lung function was reduced in the last trimester if the woman was pregnant with a baby girl, and that she needed more inhaled steroids to control the asthma," study investigator Dr. Peter G. Gibson said at a press conference during the 100th International Conference of the American Thoracic Society.
The study, presented in poster form at the meeting, included 120 asthmatic women and 33 women without asthma. The team assessed patients at 18 and 30 weeks' gestation and recorded their use of inhaled corticosteroids, lung function, morning and night symptoms, use of reliever medications, and activity limitations. The researchers did not know the gender of the fetus until after delivery.
Sixty percent of women pregnant with a male fetus remained free of asthma symptoms throughout gestation. Although 61% of women with a female fetus were symptom free at 18 weeks, by week 30 only 28% ...
Source: HighBeam Research, Low birth weight: female fetuses tied to worsening of maternal asthma...