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Sex of fetus and use of asthma drugs among asthmatic women during pregnancy. Values are numbers of women (percentages of male or female fetuses)
| Sex of fetus | No drug treatment (n=375) | β agonist alone (n=303) | Steroids (n=139) |
|---|---|---|---|
| Male (n=415) | 192 (46) | 164 (40) | 59 (14) |
| Female (n=402) | 183 (46) | 139 (35) | 80 (20) |
