Perinatal outcomes in a subsequent pregnancy among women who have a history of recurrent miscarriage
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 发起方
- 入组人数
- 20,000
- 试验地点
- 1
- 主要终点
- Antepartum haemorrhage
研究概览
简要总结
To examine if women with a history of recurrent miscarriage have a higher risk of maternal and fetal complications in the subsequent pregnancy.
研究设计
- 研究类型
- 观察性研究
- 主要目的
- 析因分组（即根据危险因素或暴露因素分组）
- 盲法
- N/a
入排标准
- 年龄范围
- 20 至 40（—）
- 性别
- Female
入选标准
- •Study group: women age range from 20 to 40 years old and a history of >= 3 miscarriages;
- •Control group: women from the general obstetric database.
排除标准
- •Twins pregnancy will be excluded from this analysis.
研究组 & 干预措施
Control group
Nil
Study group
Nil
结局指标
主要结局
Antepartum haemorrhage
时间窗: vaginal bleeding from 24 weeks gestation prior to birth of the baby
Gestational diabetes
时间窗: hyperglycarmia first diagnosed in pregnancy according to the WHO criteria
Pregnancy induced hypertension
时间窗: diastolic blood pressure of >90mmHg on two consecutive occasions taken at least four hours apart diagnosed for the first time after 20 weeks gestation
Preterm labour
时间窗: number of babies born before 37 completed weeks of gestation
Emergency caesarean rate
Fetal sex ratio (male/female)
occurrence of intrapartum fetal distress
small for gestational age
rate of admission to special care baby unit
stillbirth rate
neonatal death rate
perinatal death
次要结局
未报告次要终点