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Maternal Socio-Environmental Exposures During Early Pregnancy and Mortality Among Children Born With Critical Congenital Heart Defects
Maternal Socio-Environmental Exposures During Early Pregnancy and Mortality Among Children...
Maternal Socio-Environmental Exposures During Early Pregnancy and Mortality Among Children Born With Critical Congenital Heart Defects

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105302
ISBN  
9798270289744
DDC  
614.4
저자명  
Mowla, Sanjida Jahan.
서명/저자  
Maternal Socio-Environmental Exposures During Early Pregnancy and Mortality Among Children Born With Critical Congenital Heart Defects
발행사항  
[Sl] : The University of North Carolina at Chapel Hill, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
258 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-07, Section: B.
주기사항  
Advisor: Desrosiers, Tania A.
학위논문주기  
Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2025.
초록/해제  
요약Background: Children with critical congenital heart defects (CCHDs) experience high infant mortality (~25%). While various factors like severity and prenatal diagnosis impact survival, the role of environmental exposures remain understudied. We evaluated the associations between maternal neighborhood-level socioeconomic position (nSEP) and air pollution exposure during early pregnancy and survival in children with CCHDs.Methods: Children with CCHDs in the National Birth Defects Prevention Study (1999-2011) classified as univentricular (UVHDs; more severe) or biventricular (BVHDs) were linked to vital records for 1-year and 5-year mortality. To characterize nSEP, we applied principal component analysis to construct the Neighborhood Deprivation Index (NDI) [low (reference), moderate, or high deprivation] based on maternal addresses reported via interview. To evaluate per-IQR increases in ambient air pollutants, we assigned weekly averages (gestational weeks 2-8) using the nearest air monitor ≤50 kilometers. We estimated survival probabilities and hazard ratios (HRs) with 95% confidence intervals (CIs), adjusting for maternal and infant characteristics.Results: One-year survival was high (87-92%), though lower among children with UVHDs (60-75%) than BVHDs (93-95%). Among all CCHDs, survival differed significantly by deprivation (p0.001), with the lowest survival among those living in high deprivation areas. Compared to living in areas characterized as having low deprivation, living in areas characterized as having high deprivation was associated with an increased risk of 1-year mortality for all CCHDs (1.18 [0.83, 1.68]) and UVHDs (1.19 [0.73, 1.95]), though non-significant. Estimates for BVHDs were null (1.01 [0.58, 1.77]). For pollutant exposures, per-IQR increases in carbon monoxide (CO) were associated with increased mortality risk (1.25-1.36) across weeks 2-8. No associations were observed among children with UVHDs, but increased mortality risk was observed among children with BVHDs for CO (1.30-1.72) and sulfur dioxide (1.37-1.38). Associations with 5-year mortality were stronger in magnitude for both exposures, with greater deprivation-related disparities among BVHDs and higher CO-related mortality in UVHDs.Conclusion: These observations suggest that the socio-environmental context during pregnancy is associated with childhood mortality risk, with differences observed across severity of CCHDs. Further research could inform underlying structural, environmental, and/or physiological factors that contribute to increased early childhood mortality.
일반주제명  
Epidemiology
일반주제명  
Public health
일반주제명  
Pediatrics
일반주제명  
Clinical psychology
키워드  
Critical congenital heart defects
키워드  
Early childhood mortality
키워드  
Pregnancy
키워드  
Sulfur dioxide
기타저자  
The University of North Carolina at Chapel Hill Epidemiology
기본자료저록  
Dissertations Abstracts International. 87-07B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aMowla,  Sanjida  Jahan.
■24510▼aMaternal  Socio-Environmental  Exposures  During  Early  Pregnancy  and  Mortality  Among  Children  Born  With  Critical  Congenital  Heart  Defects
■260    ▼a[Sl]▼bThe  University  of  North  Carolina  at  Chapel  Hill▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a258  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-07,  Section:  B.
■500    ▼aAdvisor:  Desrosiers,  Tania  A.
■5021  ▼aThesis  (Ph.D.)--The  University  of  North  Carolina  at  Chapel  Hill,  2025.
■520    ▼aBackground:  Children  with  critical  congenital  heart  defects  (CCHDs)  experience  high  infant  mortality  (~25%).  While  various  factors  like  severity  and  prenatal  diagnosis  impact  survival,  the  role  of  environmental  exposures  remain  understudied.  We  evaluated  the  associations  between  maternal  neighborhood-level  socioeconomic  position  (nSEP)  and  air  pollution  exposure  during  early  pregnancy  and  survival  in  children  with  CCHDs.Methods:  Children  with  CCHDs  in  the  National  Birth  Defects  Prevention  Study  (1999-2011)  classified  as  univentricular  (UVHDs;  more  severe)  or  biventricular  (BVHDs)  were  linked  to  vital  records  for  1-year  and  5-year  mortality.  To  characterize  nSEP,  we  applied  principal  component  analysis  to  construct  the  Neighborhood  Deprivation  Index  (NDI)  [low  (reference),  moderate,  or  high  deprivation]  based  on  maternal  addresses  reported  via  interview.  To  evaluate  per-IQR  increases  in  ambient  air  pollutants,  we  assigned  weekly  averages  (gestational  weeks  2-8)  using  the  nearest  air  monitor  ≤50  kilometers.  We  estimated  survival  probabilities  and  hazard  ratios  (HRs)  with  95%  confidence  intervals  (CIs),  adjusting  for  maternal  and  infant  characteristics.Results:  One-year  survival  was  high  (87-92%),  though  lower  among  children  with  UVHDs  (60-75%)  than  BVHDs  (93-95%).  Among  all  CCHDs,  survival  differed  significantly  by  deprivation  (p0.001),  with  the  lowest  survival  among  those  living  in  high  deprivation  areas.  Compared  to  living  in  areas  characterized  as  having  low  deprivation,  living  in  areas  characterized  as  having  high  deprivation  was  associated  with  an  increased  risk  of  1-year  mortality  for  all  CCHDs  (1.18  [0.83,  1.68])  and  UVHDs  (1.19  [0.73,  1.95]),  though  non-significant.  Estimates  for  BVHDs  were  null  (1.01  [0.58,  1.77]).  For  pollutant  exposures,  per-IQR  increases  in  carbon  monoxide  (CO)  were  associated  with  increased  mortality  risk  (1.25-1.36)  across  weeks  2-8.  No  associations  were  observed  among  children  with  UVHDs,  but  increased  mortality  risk  was  observed  among  children  with  BVHDs  for  CO  (1.30-1.72)  and  sulfur  dioxide  (1.37-1.38).  Associations  with  5-year  mortality  were  stronger  in  magnitude  for  both  exposures,  with  greater  deprivation-related  disparities  among  BVHDs  and  higher  CO-related  mortality  in  UVHDs.Conclusion:  These  observations  suggest  that  the  socio-environmental  context  during  pregnancy  is  associated  with  childhood  mortality  risk,  with  differences  observed  across  severity  of  CCHDs.  Further  research  could  inform  underlying  structural,  environmental,  and/or  physiological  factors  that  contribute  to  increased  early  childhood  mortality.
■590    ▼aSchool  code:  0153.
■650  4▼aEpidemiology
■650  4▼aPublic  health
■650  4▼aPediatrics
■650  4▼aClinical  psychology
■653    ▼aCritical  congenital  heart  defects
■653    ▼aEarly  childhood  mortality
■653    ▼aPregnancy
■653    ▼aSulfur  dioxide
■690    ▼a0766
■690    ▼a0573
■690    ▼a0767
■690    ▼a0622
■71020▼aThe  University  of  North  Carolina  at  Chapel  Hill▼bEpidemiology.
■7730  ▼tDissertations  Abstracts  International▼g87-07B.
■790    ▼a0153
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360088▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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