Evidence map›Paper›PMID 33751055›Full record

Observational studyAmerican journal of epidemiology2021

Bayesian G-Computation for Estimating Impacts of Interventions on Exposure Mixtures: Demonstration With Metals From Coal-Fired Power Plants and Birth Weight.

Alexander P Keil, Jessie P Buckley, Amy E Kalkbrenner

Abstract readObservational Study
In one paragraph

Observational study in American journal of epidemiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Alexander P Keil
Jessie P Buckley
Amy E Kalkbrenner

Funding

Early Life Phthalate and Perfluoroalkyl Substance Exposures and Childhood Bone HealthR01ES030078 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BUCKLEY, JESSIE P · 2019 to 2023
$2.1M
Public health priority setting for environmental metals mixtures and birth defectsR01ES029531 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI FRY, REBECCA · 2018 to 2021
$1.2M
NIEHS NIH HHS L40 ES032257NIEHS NIH HHS R01 ES029531NIEHS NIH HHS R01 ES030078
6 · The paper itself

Abstract

The importance of studying the health impacts of exposure mixtures is increasingly being recognized, but such research presents many methodological and interpretation difficulties. We used Bayesian g-computation to estimate effects of a simulated public health action on exposure mixtures and birth weights in Milwaukee, Wisconsin, in 2011-2013. We linked data from birth records with census-tract-level air toxics data from the Environmental Protection Agency's National Air Toxics Assessment model. We estimated the difference between observed and expected birth weights that theoretically would have followed a hypothetical intervention to reduce exposure to 6 airborne metals by decommissioning 3 coal-fired power plants in Milwaukee County prior to 2010. Using Bayesian g-computation, we estimated a 68-g (95% credible interval: 25, 135) increase in birth weight following this hypothetical intervention. This example demonstrates the utility of our approach for using observational data to evaluate and contrast possible public health actions. Additionally, Bayesian g-computation offers a flexible strategy for estimating the effects of highly correlated exposures, addressing statistical issues such as variance inflation, and addressing conceptual issues such as the lack of interpretability of independent effects.

Indexed as

Birth WeightPower PlantsAir PollutantsAir PollutionBayes TheoremCoalEnvironmental ExposureHumansMetalsPremature BirthSocioeconomic FactorsWisconsinAir PollutantsCoalMetalsair pollutionair toxicsBayesian methodscausal inferenceg-computationmetals

Identifiers

PMID33751055
PMCPMC8796809

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.