Evidence map›Paper›PMID 33312643›Full record

ArticleJournal of environmental health science & engineering2020

Effect of ambient air pollution and temperature on the risk of stillbirth: a distributed lag nonlinear time series analysis.

Mehdi Ranjbaran, Rasool Mohammadi, Mehdi Yaseri, Mehdi Kamari, Abbas Habibelahi, Kamran Yazdani

Open access · greenAbstract read
In one paragraph

Article in Journal of environmental health science & engineering, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 31% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Maternal ambient air pollution exposure and risk of stillbirth in Georgia, USA.Environmental epidemiology (Philadelphia, Pa.) · 2026
    Article
  3. Maternal ambient air pollution exposure and risk of stillbirth in Georgia, USA.medRxiv : the preprint server for health sciences · 2026
    Article
  4. Review
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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 5 institutions in 1 country.

Mehdi RanjbaranDepartment of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0002-0313-3373
Rasool MohammadiDepartment of Biostatistics and Epidemiology, School of Public Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran.
Mehdi YaseriDepartment of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0002-4066-873X
Mehdi KamariDeputy of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abbas HabibelahiNeonatal Health Office, MOHME. IR IRAN, Tehran, Iran.
Kamran YazdaniDepartment of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0001-6666-1272
Tehran University of Medical Sciences · IRLorestan University of Medical Sciences · IRMinistry of Health and Medical Education · IRQazvin University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to determine the effect of ambient air pollution and temperature on stillbirth in Tehran.

methodsIn this time-series study, the effect of O

resultsAmong air pollutants, only a 5-ppm increase in the SO

conclusionEach 5-ppm increase in the mean daily SO

Indexed as

Air pollutionAmbient temperatureDistributed lag non-linear modelsStillbirth

Identifiers

PMID33312643
PMCPMC7721760
OpenAlexW3089966527

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.