Garces Ana, McClure Elizabeth M, Figueroa Lester, Pineda Sayury, Hambidge K Michael, Krebs Nancy F, Thorsten Vanessa R, Wallace Dennis D, Althabe Fernando, Goldenberg Robert L
FANCAP, Guatemala City, Guatemala.
RTI International, Durham, NC, USA.
Reprod Health. 2016 May 24;13(1):63. doi: 10.1186/s12978-016-0178-0.
The Global Network for Women's and Children's Health Research undertook a cluster-randomized trial to assess the impact of a multi-faceted intervention to identify women at high-risk of preterm birth at all levels of care, to administer corticosteroids to women and refer for facility delivery compared with standard care. Of the seven sites that participated in the ACT trial, only two sites had statistically significant reductions in the neonatal mortality among the target group of <5th percentile infants, and of the two, Guatemala's improvement in neonatal mortality was by far the largest.
We used data available from the ACT trial as well as pretrial data in an attempt to understand why neonatal mortality may have decreased in the intervention clusters in <5(th) percentile infants in Chimaltenango, Guatemala. The intervention and control clusters were compared in regards to ACS use, the various types of medical care, outcomes in facility and community births and among births in various birth weight categories.
Neonatal mortality decreased to a greater extent in the intervention compared to the control clusters in the <5(th) percentile infants in Guatemala during the ACT Trial. ACS use for the <5(th) percentile infants in the intervention clusters was 49.1 % compared to 13.8 % in the control clusters. Many measures of the quality of obstetric and neonatal care improved to a greater extent in the intervention compared to the control clusters during the trial. Births in facilities and births weighing 1500 to 2500 g had the greatest reduction in neonatal mortality.
The combination of improved care and greater ACS use may potentially account for the observed difference in neonatal mortality between the intervention and control clusters.
Clinicaltrials.gov: NCT01084096 .
全球妇女和儿童健康研究网络开展了一项整群随机试验,以评估多方面干预措施的影响。该干预措施旨在在各级医疗保健机构识别早产高危妇女,为其使用皮质类固醇,并与标准护理相比,转诊至医疗机构分娩。在参与ACT试验的七个地点中,只有两个地点在第5百分位数以下婴儿的目标组中,新生儿死亡率有统计学意义的降低,其中危地马拉的新生儿死亡率改善幅度最大。
我们使用了ACT试验中的可用数据以及试验前的数据,试图了解危地马拉奇马尔特南戈第5百分位数以下婴儿的干预组中新生儿死亡率可能下降的原因。比较了干预组和对照组在使用促肾上腺皮质激素、各类医疗护理、医疗机构分娩和社区分娩的结局以及不同出生体重类别的分娩情况。
在ACT试验期间,危地马拉第5百分位数以下婴儿的干预组新生儿死亡率下降幅度大于对照组。干预组中第5百分位数以下婴儿使用促肾上腺皮质激素的比例为49.1%,而对照组为13.8%。在试验期间,与对照组相比,干预组在许多产科和新生儿护理质量指标上改善幅度更大。在医疗机构分娩以及出生体重在1500至2500克之间的婴儿,新生儿死亡率下降幅度最大。
护理改善和促肾上腺皮质激素使用增加的综合作用可能是干预组和对照组之间观察到的新生儿死亡率差异的潜在原因。
Clinicaltrials.gov:NCT01084096 。