OBJECTIVE We aimed to identify differences in morbidity and mortality between inborn versus outborn extremely low birth weight (ELBW) infants admitted to the Texas Children's Hospital neonatal intensive care unit (NICU). STUDY DESIGN Vermont Oxford Network data were analyzed between January 2014 and December 2017. Inborn versus outborn outcomes were compared. RESULT Of 533 ELBW infants, 402 were inborn, and 131 were outborn. Gestational age and birth weight (BW) were similar. After adjusting outcomes to control for maternal steroids, maternal hypertension, maternal prenatal care, and temperature below 36 °C at admission, no outcomes were significantly different except inborn patients had decreased odds of late onset sepsis (adjusted odds ratio = 0.606, 95% confidence interval: 0.377-0.973, p = 0.038). CONCLUSION In this study, outborn ELBW patients had increased odds of late onset sepsis compared with inborn ELBW patients after controlling for covariates that differed significantly between these two cohorts.

中文翻译：

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出生极低出生体重新生儿的死亡率和发病率：回顾性分析。

目的我们旨在确定德州儿童医院新生儿重症监护病房（NICU）收治的新生儿与新生儿极低出生体重（ELBW）婴儿的发病率和死亡率的差异。研究设计对2014年1月至2017年12月之间的佛蒙特州牛津网络数据进行了分析。比较了先天与后代结局。结果533名ELBW婴儿中，有402例是出生的，而131例是外来的。妊娠年龄和出生体重（BW）相似。在调整结果以控制母体类固醇，母体高血压，母体产前护理和入院时体温低于36°C之后，除新生儿患者晚期败血症几率降低外，其他结果均无显着差异（调整后的优势比= 0.606，置信度为95％）间隔：0.377-0.973，p = 0.038）。结论在本研究中，