Evidence map›Paper›PMID 33336135›Full record

ArticleEnvironmental epidemiology (Philadelphia, Pa.)2020

Residential proximity to green space and preeclampsia in California.

Kari A Weber, Evan Lyons, Wei Yang, Charlotte Stevenson, David K Stevenson, Gary M Shaw

Open access · goldAbstract read
In one paragraph

Article in Environmental epidemiology (Philadelphia, Pa.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

7 citing papers in PubMed, 11 citations in OpenAlex.

  1. Association between residential greenness and preeclampsia in Japan.Environmental epidemiology (Philadelphia, Pa.) · 2026
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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 at 1 institution in 1 country.

Kari A WeberDepartment of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, California.
Evan LyonsDepartment of Earth System Science, Stanford University, Stanford, California; and.
Wei YangDepartment of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, California.
Charlotte StevensonFreelance Science Writer, Sun Valley, Idaho.
David K StevensonDepartment of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, California.
Gary M ShawDepartment of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, California.
Stanford University · US

Funding

Exploring Multiple Environmental Exposures in Combination as Risk Factors for Adverse Pregnancy OutcomesF32HD096754 · NICHD · STANFORD UNIVERSITY · PI WEBER, KARI ANN · 2018 to 2020
$166k
NCBDD CDC HHS U01 DD001226NICHD NIH HHS F32 HD096754
6 · The paper itself

Abstract

backgroundWe investigated whether residing near more green space might reduce the risk of preeclampsia.

methodsParticipants were women who delivered a live, singleton birth between 1998 and 2011 in eight counties of the San Joaquin Valley in California. There were 7276 cases of preeclampsia divided into mild, severe, or superimposed on preexisting hypertension. Controls were 197,345 women who did not have a hypertensive disorder and delivered between 37 and 41 weeks. Green space was estimated from satellite data using Normalized Difference Vegetation Index (NDVI), an index calculated from surface reflectance at the visible and near-infrared wavelengths. Values closer to 1 denote a higher density of green vegetation. Average NDVI was calculated within a 50 m, 100 m, and 500 m buffer around each woman's residence. Odds ratios and 95% confidence intervals were estimated comparing the lowest and highest quartiles of mean NDVI to the interquartile range comparing each preeclampsia phenotype, divided into early (20-31 weeks) and late (32-36 weeks) preterm birth, to full-term controls.

resultsWe observed an inverse association in the 500 m buffer for women in the top quartile of NDVI and a positive association for women in the lowest quartile of NDVI for women with superimposed preeclampsia. There were no associations in the 50 and 100 m buffers.

conclusionWithin a 500 m buffer, more green space was inversely associated with superimposed preeclampsia. Future work should explore the mechanism by which green space may protect against preeclampsia.

Indexed as

Green spaceHypertensionNDVIPreeclampsiaPregnancyPreterm birth

Identifiers

PMID33336135
PMCPMC7727466
OpenAlexW3093949492

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.