Evidence map›Paper›PMID 28371754›Full record

ArticleEnvironmental research2017

Extending the Distributed Lag Model framework to handle chemical mixtures.

Ghalib A Bello, Manish Arora, Christine Austin, Megan K Horton, Robert O Wright, Chris Gennings

Erratum issuedAbstract read
In one paragraph

Article in Environmental research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
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

38 citing papers in PubMed, 50 citations in OpenAlex.

  1. Trial
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  3. Multi-Tree Model for Precision Environmental Health with Longitudinally Assessed Mixture Exposure.Journal of the Royal Statistical Society. Series C, Applied statistics · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Ghalib A BelloDeptartment of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17E 102nd St, New York, NY 10029, USA. Electronic address: ghalib.bello@mssm.edu.
Manish AroraDeptartment of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17E 102nd St, New York, NY 10029, USA.
Christine AustinDeptartment of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17E 102nd St, New York, NY 10029, USA.
Megan K HortonDeptartment of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17E 102nd St, New York, NY 10029, USA.
Robert O WrightDeptartment of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17E 102nd St, New York, NY 10029, USA.
Chris GenningsDeptartment of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17E 102nd St, New York, NY 10029, USA.
Icahn School of Medicine at Mount Sinai · US

Funding

Statistical Services and Methods Development ResourceU2CES026555 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI TEITELBAUM, SUSAN L · 2015 to 2025
$26.4M
The Mount Sinai Transdisciplinary Center on Early Environmental ExposuresP30ES023515 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI Maria Jose Rosa · 2014 to 2026
$21.3M
Organic-metal mixtures and neurodevelopmentR01ES026033 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI Manish Arora, Robert O Wright · 2016 to 2026
$6.1M
Reconstructing fetal toxicant exposure and homeostatic disruptionsDP2ES025453 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ARORA, MANISH · 2014 to 2019
$2.6M
Early Life Environmental Toxicant Exposure and Oral HealthR00ES019597 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ARORA, MANISH · 2013 to 2015
$747k
Determining the Neurodevelopmental Effects of Transition from Breastfeeding to Infant Formula using a Novel BiomarkerK99HD087523 · NICHD · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI AUSTIN, CHRISTINE · 2017 to 2018
$215k
NICHD NIH HHS K99 HD087523NIEHS NIH HHS DP2 ES025453NIEHS NIH HHS P30 ES023515NIEHS NIH HHS R00 ES019597NIEHS NIH HHS R01 ES026033NIEHS NIH HHS U2C ES026555
6 · The paper itself

Abstract

Distributed Lag Models (DLMs) are used in environmental health studies to analyze the time-delayed effect of an exposure on an outcome of interest. Given the increasing need for analytical tools for evaluation of the effects of exposure to multi-pollutant mixtures, this study attempts to extend the classical DLM framework to accommodate and evaluate multiple longitudinally observed exposures. We introduce 2 techniques for quantifying the time-varying mixture effect of multiple exposures on an outcome of interest. Lagged WQS, the first technique, is based on Weighted Quantile Sum (WQS) regression, a penalized regression method that estimates mixture effects using a weighted index. We also introduce Tree-based DLMs, a nonparametric alternative for assessment of lagged mixture effects. This technique is based on the Random Forest (RF) algorithm, a nonparametric, tree-based estimation technique that has shown excellent performance in a wide variety of domains. In a simulation study, we tested the feasibility of these techniques and evaluated their performance in comparison to standard methodology. Both methods exhibited relatively robust performance, accurately capturing pre-defined non-linear functional relationships in different simulation settings. Further, we applied these techniques to data on perinatal exposure to environmental metal toxicants, with the goal of evaluating the effects of exposure on neurodevelopment. Our methods identified critical neurodevelopmental windows showing significant sensitivity to metal mixtures.

Indexed as

Environmental ExposureModels, TheoreticalEnvironmental HealthEnvironmental MonitoringEnvironmental PollutantsHazardous SubstancesHumansMetalsRegression AnalysisEnvironmental PollutantsHazardous SubstancesMetalsChemical mixturesDistributed lag modelsRandom forestsWeighted quantile sum regression

Identifiers

PMID28371754
PMCPMC5657400
OpenAlexW2604159119

What OpenQuestion holds

Textmetadata
LicenceTDM
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.