Antonakou Angeliki, Papoutsis Dimitrios
Assistant Professor, Department of Midwifery, Midwifery School, 'Alexander' Technological Educational Institute of Thessaloniki , Greece, Thessaloniki, Greece .
Post-Doctoral Research Fellow, Obstetrician and Gynaecologist, Department of Obstetrics and Gynaecology, Shrewsbury and Telford Hospitals NHS Trust , United Kingdom .
J Clin Diagn Res. 2016 Dec;10(12):QC22-QC25. doi: 10.7860/JCDR/2016/22099.9104. Epub 2016 Dec 1.
There is increasing evidence of a gender-related phenomenon where the presence of a male fetus may have an adverse effect on the outcome of pregnancy.
The aim of this study was to investigate the effect of fetal gender on the delivery outcome in primigravidae women with induced labours.
This was an observational cohort study of primigravidae women who had Induction Of Labour (IOL) for all indications during a two-year period. Women with breech vaginal deliveries, stillbirths, multiple pregnancies and elective Caesarean Section (CS) were excluded.
Of the 936 eligible patients identified, 493(52.6%) gave birth to male neonates and 443(47.4%) to female neonates. Age, ethnicity, Body Mass Index (BMI) and smoking were similar between women that delivered male and female neonates. More than half of all women were induced for post-date pregnancies. In women who gave birth to male neonates, the CS delivery rate was higher than in those with female neonates (23.7% vs 17.8%; p=0.029). Though emergency admission rates to the neonatal Intensive Care Unit (ICU) and arterial/venous pH from umbilical cord sampling immediately after birth were similar between male and female neonates, nevertheless male neonates had lower Apgar scores of <7 at 1 minute after birth (p=0.02).
This study has shown that, male gender fetuses have a higher CS delivery rate in primigravidae women undergoing IOL and may be more vulnerable to fetal compromise when in labour.
越来越多的证据表明存在一种与性别相关的现象，即男性胎儿的存在可能对妊娠结局产生不利影响。
本研究的目的是调查胎儿性别对初产妇引产分娩结局的影响。
这是一项对初产妇进行的观察性队列研究，这些初产妇在两年期间因各种指征接受引产。排除臀位阴道分娩、死产、多胎妊娠和择期剖宫产的妇女。
在确定的936名符合条件的患者中，493名（52.6%）分娩出男婴，443名（47.4%）分娩出女婴。分娩男婴和女婴的妇女在年龄、种族、体重指数（BMI）和吸烟情况方面相似。超过一半的妇女因过期妊娠而引产。分娩男婴的妇女剖宫产率高于分娩女婴的妇女（23.7%对17.8%；p=0.029）。虽然男婴和女婴出生后立即入住新生儿重症监护病房（ICU）的急诊率以及脐带血采样的动脉/静脉pH值相似，但男婴出生后1分钟时Apgar评分<7的比例较低（p=0.02）。
本研究表明，在接受引产的初产妇中，男性胎儿的剖宫产率较高，并且在分娩时可能更容易出现胎儿窘迫。
