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Pregnancy outcome and characteristics of women who conceive following subfertility treatment remains a subject of great interest. We analyzed these variables among 199 women who delivered a registerable twin birth compared with 1773 women who delivered a naturally conceived twin birth in a population-based obstetric cohort drawn from around Oxford, England. Treatment was restricted to conceptions involving simple ovulation induction only. Treated mothers were of significantly higher social class and older, more likely to deliver girls and to be delivered by cesarean section, and significantly less likely to be smokers at the time of antenatal booking and to have delivered previous pregnancies. Pregnancy outcome was similar between the two groups for most measures, with the exception of birthweight which was lower in treated twins, though not significantly so. Overall the results are reassuring with respect to outcome in twin pregnancies following simple ovulation induction.

Original publication

DOI

10.1375/183242706776382437

Type

Journal article

Journal

Twin Res Hum Genet

Publication Date

04/2006

Volume

9

Pages

279 - 284

Keywords

Adult, Age Factors, Birth Weight, Female, Fertilization, Humans, Infertility, Female, Male, Ovulation Induction, Pregnancy, Pregnancy Outcome, Socioeconomic Factors