Preterm birth and low birth weight after assisted reproductive technology-related pregnancy in Australia between 1996 and 2000

• Published in: Fertility and sterility Vol. 83; no. 6; pp. 1650 - 1658
• Main Authors: Wang, Yueping Alex, Sullivan, Elizabeth A., Black, Deborah, Dean, Jishan, Bryant, Joanne, Chapman, Michael
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.06.2005; Elsevier Science
• Subjects: Adult; Australia - epidemiology; Biological and medical sciences; Diseases of mother, fetus and pregnancy; Embryo Transfer - statistics & numerical data; Embryo Transfer - trends; Female; Gynecology. Andrology. Obstetrics; Humans; Infant, Low Birth Weight - physiology; Infant, Newborn; LBW; Male; Medical sciences; multiples; Pregnancy; Pregnancy. Fetus. Placenta; Premature Birth - epidemiology; preterm birth; Reproductive Techniques, Assisted - statistics & numerical data; Reproductive Techniques, Assisted - trends; Retrospective Studies; singletons; Australia; Oceania; preterm birth; LBW; ART; singletons; multiples; Pregnancy disorders; Low birth weight; Premature delivery; Assisted procreation; Singleton pregnancy; Newborn diseases; Prematurity; Fertility; Technology; Female; Birth weight
• ISSN: 0015-0282; 1556-5653
• DOI: 10.1016/j.fertnstert.2004.12.033

To describe patterns of preterm birth and low birth weight (LBW) for infants born after assisted reproductive technology (ART) and determine whether these were associated with maternal or treatment characteristics. Retrospective cohort study of national population data of infants conceived through ART. Australian birth records from 1996 to 2000. Eighteen thousand, four hundred twenty-nine liveborn and stillborn infants conceived through ART. In vitro fertilization, intracytoplasmic sperm injection, and gamete intrafallopian transfer. Preterm birth and LBW. Preterm birth and LBW were more common among singletons and twins conceived with IVF and born to nulliparous mothers. Preterm birth and LBW were, respectively, 1.3 times and 1.5 times more likely to occur among singletons conceived by transfer of fresh embryos, compared with transfer of frozen embryos. Preterm birth and LBW was more common among couples who had female-factor infertility compared with male-factor infertility. The transfer of fresh embryos and female-factor infertility were independently associated with preterm birth and LBW for both singletons and twins after ART.