Evidence map›Paper›PMID 33778340›Full record

ArticleEnvironmental epidemiology (Philadelphia, Pa.)2019

A quantile regression approach to examine fine particles, term low birth weight, and racial/ethnic disparities.

Lara Schwarz, Tim Bruckner, Sindana D Ilango, Paige Sheridan, Rupa Basu, Tarik Benmarhnia

Abstract read
In one paragraph

Article in Environmental epidemiology (Philadelphia, Pa.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Association of PMPaediatric and perinatal epidemiology · 2025
    Article
  5. On function-on-function linear quantile regression.Journal of applied statistics · 2025
    Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Lara SchwarzSchool of Public Health, San Diego State University, San Diego, California.
Tim BrucknerPublic Health, University of California, Irvine, California.
Sindana D IlangoSchool of Public Health, San Diego State University, San Diego, California.
Paige SheridanSchool of Public Health, San Diego State University, San Diego, California.
Rupa BasuAir and Climate Epidemiology Section, Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, California.
Tarik BenmarhniaSchool of Public Health, San Diego State University, San Diego, California.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExposure to fine particulate matter (PM

methodsData for singleton births in California from October 24, 2005 to February 27, 2010 were collected from the birth records accessed from the California Department of Public Health. Air pollution monitoring data collected by the California Air Resources Board and interpolated for each zip code using an inverse-distance weighting approach, and linked to maternal zip code of residence reported on the birth certificate. Multilevel linear regression models were conducted with mother's residential zip code tabulation area as a random effect. Multilevel quantile regression models were used to analyze the association at different percentiles of birth weight (5th, 10th, 25th, 50th, 75th, 90th, 95th), as well as examine the heterogeneity in this association between racial/ethnic groups.

resultsLinear regression revealed that a 10 μg/m

conclusionResults of the quantile regression revealed greater disparities, particularly for infants with the lowest birth weight. By identifying vulnerable populations, we can promote and implement policies to confront these health disparities.

Indexed as

Air pollutionHealth disparitiesLow birth weightQuantile regression

Identifiers

PMID33778340
PMCPMC7939411

What OpenQuestion holds

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Registered trials

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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.