NEC_deidentified.dta

Data used in a case-crossover study of neonatal intensive care infants born at ≤ 32 weeks’ gestation who were admitted to 5 central Ohio intensive care units from January 2012-July 2016 and developed necrotizing enterocolitis (NEC) Bell Stage ≥2. Each patient served as their own control, with exposure during the 48-hour period just prior to NEC onset (hazard period) being compared to a preceding 48-hour control period, thus eliminating confounding by patient factors fixed between both intervals. The goal was to evaluate the short-term effects of feed fortification, feed volume increase, and PRBC transfusion on the odds of developing NEC.<br><br>All dates were scrambled with a fixed number of days.

本数据集应用于一项病例交叉研究，研究对象为2012年1月至2016年7月期间入住俄亥俄州中部5家重症监护病房、胎龄≤32周的新生儿重症监护患儿，且均发展为Bell分期≥2级的坏死性小肠结肠炎（Necrotizing Enterocolitis, NEC）。每位患者均作为自身对照，将NEC发病前48小时（风险期）的暴露情况与此前48小时的对照期进行对比，从而消除了两个时段间固定不变的患者固有因素所带来的混杂偏倚。本研究旨在评估喂养强化、喂养量增加以及悬浮红细胞（Packed Red Blood Cells, PRBC）输注对发生NEC的比值比的影响。

所有日期均通过固定天数偏移进行了脱敏处理。