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Adapting the log quadratic model to estimate age- and cause-specific mortality among neonates.
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- Author(s): Perin J;Perin J; Liu L; Liu L; Liu L; Mullany LC; Mullany LC; Tielsch JM; Tielsch JM; Verhulst A; Verhulst A; Guillot M; Guillot M; Guillot M; Katz J; Katz J
- Source:
PloS one [PLoS One] 2024 Jul 12; Vol. 19 (7), pp. e0304841. Date of Electronic Publication: 2024 Jul 12 (Print Publication: 2024).- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
- Publication Information: Original Publication: San Francisco, CA : Public Library of Science
- Subject Terms:
- Abstract: Introduction: Estimates for cause-specific mortality for neonates are generally available for all countries for neonates overall (0 to 28 days). However, cause-specific mortality is generally not being estimated at higher age resolution for neonates, despite evidence of heterogeneity in the causes of deaths during this period. We aimed to use the adapted log quadratic model in a setting where verbal autopsy was the primary means of determining cause of death.
Methods: We examined the timing and causes of death among a cohort of neonates in rural Nepal followed as part of the Nepal Oil Massage Study (NOMS). We adapted methods defined by Wilmoth et al (2012) and Guillot et al. (2022) to estimate age and cause-specific mortality among neonates. We used cross validation to estimate the accuracy of this model, holding out each three month period. We took the average cross validation across hold out as our measure of model performance and compared to a standard approach which did not account for the heterogeneity in cause-specific mortality rate within this age group.
Results: There were 957 neonates in the NOMS cohort with known age and cause of death. We estimated an average cross-validation error of 0.9 per 1000 live births for mortality due to prematurity in the first week, and 1.1 for mortality due to birth asphyxia, compared to the standard approach, having error 7.4 and 7.8 per 1000 live births, respectively. Generally mortality rates for less common causes such as congenital malformations and pneumonia were estimated with higher cross-validation error.
Conclusions: The stability and precision of these estimates compare favorably with similar estimates developed with higher quality cause-specific mortality surveillance from China, demonstrating that reliably estimating causes of mortality at high resolution is possible for neonates in low resources areas.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2024 Perin et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.) - References: Lancet Glob Health. 2022 Feb;10(2):e195-e206. (PMID: 35063111)
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- Publication Date: 20240714
- Accession Number: PMC11244816
- Accession Number: 10.1371/journal.pone.0304841
- Accession Number: 38995896
- Source:
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