Kaajal Patel , Sopheakneary Say , Daly Leng , Sophanou Khut , Sothearith Duong , Chou Ly , Arthur Riedel , Koung Lo , Verena Carrara , Claudia Turner
{"title":"利用国际围产期死亡率疾病分类(ICD-PM)和死因推断来确定柬埔寨农村死产和新生儿死亡的原因:一项基于人群的前瞻性队列研究","authors":"Kaajal Patel , Sopheakneary Say , Daly Leng , Sophanou Khut , Sothearith Duong , Chou Ly , Arthur Riedel , Koung Lo , Verena Carrara , Claudia Turner","doi":"10.1016/j.lanwpc.2025.101626","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Perinatal mortality remains a significant global health challenge, particularly in low- and middle-income countries (LMICs). Accurate cause-of-death data are essential to inform effective interventions but are often scarce. This study aimed to identify causes of stillbirths and neonatal deaths in rural Cambodia using verbal autopsy (VA) and the WHO International Classification of Diseases to Perinatal Mortality (ICD-PM).</div></div><div><h3>Methods</h3><div>A four-year prospective study (2018–2022) in Preah Vihear province, Cambodia, established a community health worker-based pregnancy surveillance system. Verbal autopsy was conducted on stillbirths and neonatal deaths, with dual physician analysis to interpret VA data. To classify causes of death, ICD-PM was applied with adaptations made for stillbirths with unknown timing of death.</div></div><div><h3>Findings</h3><div>A total of 522 deaths (229 stillbirths, 293 neonatal deaths) were recorded, and 79.1% (413) had a VA. Applying ICD-PM, primary causes of death were identified for 36.6% of stillbirths and 95.0% of neonatal deaths. The leading cause of death was hypoxia for intrapartum stillbirths (78.3%), low birth weight and prematurity for early neonatal deaths (40.9%), and infection for late neonatal deaths (51.4%). Complications during labour and delivery were the leading maternal contributing condition for intrapartum stillbirths (63.3%) and early neonatal deaths (42.4%). Unknown timing of death was assigned to 12.0% of stillbirths.</div></div><div><h3>Interpretation</h3><div>Application of ICD-PM with VA-derived data provides valuable insights into causes of stillbirths and neonatal deaths. However, adaptations are necessary to address ICD-PM's limitations, particularly to classify unknown timing of death. Our findings can contribute to global efforts to improve the reporting of perinatal mortality data.</div></div><div><h3>Funding</h3><div>This study is nested in the Saving Babies' Lives study, which was supported by funding from <span>Angkor Hospital for Children</span>, <span>Civil Society in Development</span>, <span>Fu Tak Iam Foundation</span>, <span>Manan Trust</span>, <span>T&J Meyer Family Foundation</span>, <span>Vitol Foundation</span>, <span>IF Foundation</span>, and <span>Wellcome Trust</span> [<span><span>220211</span></span>]. This research was funded in part by the <span>Wellcome Trust</span> [<span><span>220211/Z/20/Z</span></span>].</div></div>","PeriodicalId":22792,"journal":{"name":"The Lancet Regional Health: Western Pacific","volume":"60 ","pages":"Article 101626"},"PeriodicalIF":8.1000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Use of the International Classification of Diseases to Perinatal Mortality (ICD-PM) with verbal autopsy to determine the causes of stillbirths and neonatal deaths in rural Cambodia: a population-based, prospective, cohort study\",\"authors\":\"Kaajal Patel , Sopheakneary Say , Daly Leng , Sophanou Khut , Sothearith Duong , Chou Ly , Arthur Riedel , Koung Lo , Verena Carrara , Claudia Turner\",\"doi\":\"10.1016/j.lanwpc.2025.101626\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Perinatal mortality remains a significant global health challenge, particularly in low- and middle-income countries (LMICs). Accurate cause-of-death data are essential to inform effective interventions but are often scarce. This study aimed to identify causes of stillbirths and neonatal deaths in rural Cambodia using verbal autopsy (VA) and the WHO International Classification of Diseases to Perinatal Mortality (ICD-PM).</div></div><div><h3>Methods</h3><div>A four-year prospective study (2018–2022) in Preah Vihear province, Cambodia, established a community health worker-based pregnancy surveillance system. Verbal autopsy was conducted on stillbirths and neonatal deaths, with dual physician analysis to interpret VA data. To classify causes of death, ICD-PM was applied with adaptations made for stillbirths with unknown timing of death.</div></div><div><h3>Findings</h3><div>A total of 522 deaths (229 stillbirths, 293 neonatal deaths) were recorded, and 79.1% (413) had a VA. Applying ICD-PM, primary causes of death were identified for 36.6% of stillbirths and 95.0% of neonatal deaths. The leading cause of death was hypoxia for intrapartum stillbirths (78.3%), low birth weight and prematurity for early neonatal deaths (40.9%), and infection for late neonatal deaths (51.4%). Complications during labour and delivery were the leading maternal contributing condition for intrapartum stillbirths (63.3%) and early neonatal deaths (42.4%). Unknown timing of death was assigned to 12.0% of stillbirths.</div></div><div><h3>Interpretation</h3><div>Application of ICD-PM with VA-derived data provides valuable insights into causes of stillbirths and neonatal deaths. However, adaptations are necessary to address ICD-PM's limitations, particularly to classify unknown timing of death. Our findings can contribute to global efforts to improve the reporting of perinatal mortality data.</div></div><div><h3>Funding</h3><div>This study is nested in the Saving Babies' Lives study, which was supported by funding from <span>Angkor Hospital for Children</span>, <span>Civil Society in Development</span>, <span>Fu Tak Iam Foundation</span>, <span>Manan Trust</span>, <span>T&J Meyer Family Foundation</span>, <span>Vitol Foundation</span>, <span>IF Foundation</span>, and <span>Wellcome Trust</span> [<span><span>220211</span></span>]. 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Use of the International Classification of Diseases to Perinatal Mortality (ICD-PM) with verbal autopsy to determine the causes of stillbirths and neonatal deaths in rural Cambodia: a population-based, prospective, cohort study
Background
Perinatal mortality remains a significant global health challenge, particularly in low- and middle-income countries (LMICs). Accurate cause-of-death data are essential to inform effective interventions but are often scarce. This study aimed to identify causes of stillbirths and neonatal deaths in rural Cambodia using verbal autopsy (VA) and the WHO International Classification of Diseases to Perinatal Mortality (ICD-PM).
Methods
A four-year prospective study (2018–2022) in Preah Vihear province, Cambodia, established a community health worker-based pregnancy surveillance system. Verbal autopsy was conducted on stillbirths and neonatal deaths, with dual physician analysis to interpret VA data. To classify causes of death, ICD-PM was applied with adaptations made for stillbirths with unknown timing of death.
Findings
A total of 522 deaths (229 stillbirths, 293 neonatal deaths) were recorded, and 79.1% (413) had a VA. Applying ICD-PM, primary causes of death were identified for 36.6% of stillbirths and 95.0% of neonatal deaths. The leading cause of death was hypoxia for intrapartum stillbirths (78.3%), low birth weight and prematurity for early neonatal deaths (40.9%), and infection for late neonatal deaths (51.4%). Complications during labour and delivery were the leading maternal contributing condition for intrapartum stillbirths (63.3%) and early neonatal deaths (42.4%). Unknown timing of death was assigned to 12.0% of stillbirths.
Interpretation
Application of ICD-PM with VA-derived data provides valuable insights into causes of stillbirths and neonatal deaths. However, adaptations are necessary to address ICD-PM's limitations, particularly to classify unknown timing of death. Our findings can contribute to global efforts to improve the reporting of perinatal mortality data.
Funding
This study is nested in the Saving Babies' Lives study, which was supported by funding from Angkor Hospital for Children, Civil Society in Development, Fu Tak Iam Foundation, Manan Trust, T&J Meyer Family Foundation, Vitol Foundation, IF Foundation, and Wellcome Trust [220211]. This research was funded in part by the Wellcome Trust [220211/Z/20/Z].
期刊介绍:
The Lancet Regional Health – Western Pacific, a gold open access journal, is an integral part of The Lancet's global initiative advocating for healthcare quality and access worldwide. It aims to advance clinical practice and health policy in the Western Pacific region, contributing to enhanced health outcomes. The journal publishes high-quality original research shedding light on clinical practice and health policy in the region. It also includes reviews, commentaries, and opinion pieces covering diverse regional health topics, such as infectious diseases, non-communicable diseases, child and adolescent health, maternal and reproductive health, aging health, mental health, the health workforce and systems, and health policy.