ArticleAmerican journal of public health2014
A quasi-experimental analysis of maternal altitude exposure and infant birth weight.
Article in American journal of public health, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Fetal growth, high altitude, and evolutionary adaptation: a new perspective.American journal of physiology. Regulatory, integrative and comparative physiology · 2021Article
- Moderate altitude impacts birth weight: 30 years retrospective sibling analyses using record linkage data.Pediatric research · 2019Article
- Multilevel analysis of individual, household, and community factors influencing child growth in Nepal.BMC pediatrics · 2019Article
- The impact of altitude on birth weight depends on further mother- and infant-related factors: a population-based study in an altitude range up to 1600 m in Austria between 1984 and 2013.Journal of perinatology : official journal of the California Perinatal Association · 2015Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesWe analyzed singleton births to determine the relationship between birth weight and altitude exposure.
methodsWe analyzed 715,213 singleton births across 74 counties from the western states of Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, and Washington from January 1, 2000, to December 31, 2000. Birth data were obtained from the Division of Vital Statistics, National Center for Health Statistics, for registered births.
resultsRegression analyses supported previous research by showing that a 1000-meter increase in maternal altitude exposure in pregnancy was associated with a 75.9-gram reduction in birth weight (95% confidence interval = -84.1, -67.6). Quantile regression models indicated significant and near-uniform depressant effects from altitude exposure across the conditional distribution of birth weight. Bivariate sample-selection models showed that a 1000-meter increase in altitude exposure, over and above baseline residential altitude, decreased birth weight by an additional 58.8 grams (95% confidence interval = -98.4, -19.2).
conclusionsBecause of calculable health care-related costs associated with lower birth weight, our reported results might be of interest to clinicians practicing at higher altitudes.
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