NCT03989843已完成不适用
Is Cryopreserved Embryo Replacement is Associated With Higher Birthweight Compared With Fresh Embryo ? Sibling Embryo Cohort Study
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 183
- 试验地点
- 1
- 主要终点
- birthweight
研究概览
简要总结
Birth weight (BW) is higher after frozen embryo transfer (FET) than after fresh embryo replacement. No study has compared the BW of siblings conceived using the same oocyte/embryo cohort. The aim of this study was to determine whether the freezing-thawing procedure is involved in such difference.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 43 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •sibling pairs where fresh embryo replacement resulting in a singleton live birth was followed by transfer of one or two frozen embryos from the same cohort that resulted in a singleton live birth, between May 2007 and June 2015.
排除标准
- •Twin pregnancies and stillbirths were excluded. If the BW of at least one sibling was unknown, the pair was not included in the study.
结局指标
主要结局
birthweight
时间窗: 1 day
change after FET than after fresh embryo transfer
次要结局
未报告次要终点
研究者
研究点 (1)
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