Preterm birth in twins after subfertility treatment: population based cohort study
نویسندگان
چکیده
منابع مشابه
Preterm birth in twins after subfertility treatment: population based cohort study.
OBJECTIVES To assess gestational length and prevalence of preterm birth among medically and naturally conceived twins; to establish the role of zygosity and chorionicity in assessing gestational length in twins born after subfertility treatment. DESIGN Population based cohort study. SETTING Collaborative network of 19 maternity facilities in East Flanders, Belgium (East Flanders prospective...
متن کاملPregnancy outcome among twins conceived after subfertility treatment compared with natural twins: A population-based study.
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 conceptio...
متن کاملSecular trends in preterm birth: a hospital-based cohort study.
CONTEXT Canada and the United States have reported a recent increase in the incidence of preterm birth, but the reasons for this increase are unknown. OBJECTIVE To assess secular trends in preterm birth and its potential determinants. DESIGN Hospital-based cohort study. SETTING Canadian tertiary care university teaching hospital, 1978-1996. PARTICIPANTS A total of 65574 nonreferred live...
متن کاملIntergenerational Cohort Study of Preterm and Small-for-Gestational-Age Birth in Twins and Singletons.
To date, several studies have investigated the intergenerational effect of preterm and small-for-gestational-age (SGA) births. However, most studies excluded both twin mothers and twin offspring from the analyses. Thus, the objective of this study was to investigate the intergenerational effect of preterm birth and SGA births among twins and singletons. A prospective population-based register s...
متن کاملPreterm birth by vacuum extraction and neonatal outcome: a population-based cohort study
BACKGROUND Very few studies have investigated the neonatal outcomes after vacuum extraction delivery (VE) in the preterm period and the results of these studies are inconclusive. The objective of this study was to describe the use of VE for preterm delivery in Sweden and to compare rates of neonatal complications after preterm delivery by VE to those found after cesarean section during labor (C...
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ژورنال
عنوان ژورنال: BMJ
سال: 2005
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.38625.685706.ae