先天異常児の生存格差に関する欧州研究を主導 (Experts lead European study into childhood survival inequalities)

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2026-08-13 スウォンジー大学

英国のSwansea Universityが主導する欧州共同研究では、子どもの生存率に関する地域間・社会経済的格差の実態解明に取り組んでいる。研究チームは、欧州各国の大規模人口データや医療データを活用し、乳幼児期から青年期までの死亡リスクと、その背景にある社会的・経済的要因を分析する。近年、欧州全体で子どもの生存率は向上しているものの、所得、居住地域、医療アクセス、教育水準などによる不平等が依然として存在することが懸念されている。本研究は、各国間の差異や格差発生の要因を明らかにし、政策立案者にエビデンスを提供することを目的としている。成果は、子どもの健康格差の是正や、公平な医療・福祉政策の策定に貢献すると期待される。

<関連情報>

先天異常を持つヨーロッパの子供たちの死亡率:EUROLINKCATコホートにおける社会経済的地位との関連性 Mortality amongst European children with congenital anomalies: Associations with socio-economic status in the EUROLINKCAT cohort

Sue Jordan,David Tucker,Ieuan Scanlon,Daniel S. Thayer,Elisa Ballardini,Clara Cavero-Carbonell,Mads Damkjaer,Miriam Gatt,Mika Gissler,Lyubov Ostapchuk,Michel Santoro,Sarah Stevens,Diana Wellesley, [ … ],Hywel T. Evans
PLOS One  Published: August 5, 2026
DOI:https://doi.org/10.1371/journal.pone.0352025

Abstract

Background
Childhood mortality is affected by major congenital anomalies and socio-economic status (SES). To our knowledge, their combined impact has not been explored to age 10.

Methods
We analysed the population-based EUROlinkCAT cohort to ascertain the impact of SES on mortality by ages 1 and 10 amongst children with congenital anomalies in ten congenital anomaly registers in seven European countries. Four countries defined SES according to maternal education, and two used their national index of multiple deprivation. The ten registers used a common script to generate data on survival by ages 1 and 1–10 (365–3651 days). Eight registers analysed deaths according to their SES criteria, categorised as low, intermediate and high SES. Linked data were combined in random effects meta-analyses. Finland and Emilia-Romagna held data on single motherhood and EU-nationality.

Results
We analysed mortality in relation to SES using data on 47,134 live-born children with major congenital anomalies classified and recorded 1996–2014. Mortality by age 1 and ages 1–10 was higher amongst the most than the least deprived, hazard ratios (HR) and 95% confidence intervals (CI) 1.47, 1.19–1.83 and 2.00, 1.32–3.02. Differences between intermediate and least deprived groups were smaller. Differences were statistically significant for all four analyses only in Ukraine and Wales. Mortality rates were higher for children of non-EU nationals, but not single mothers.

Implications
Deprivation was more strongly associated with death at ages 1–10 than in infancy. These analyses of the most ill children in Europe indicate that, to achieve sustainable development goals, more resources are needed for the most vulnerable children.

医療・健康
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