Evidence map›Paper›PMID 30789427›Full record

ArticleEpidemiology (Cambridge, Mass.)2019

Sun Smoke in Sweden: Perinatal Implications of the Laki Volcanic Eruptions, 1783-1784.

Joan A Casey, Alison Gemmill, Holly Elser, Deborah Karasek, Ralph Catalano

Abstract readHistorical Article
PubMed Full text at PMC Publisher
In one paragraph

Article in Epidemiology (Cambridge, Mass.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Review
  2. Review
  3. A test of oscillation in the human secondary sex ratio.Evolution, medicine, and public health · 2020
    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

5 authors.

Joan A CaseyFrom the School of Public Health, University of California at Berkeley, Berkeley, CA.
Alison GemmillProgram in Public Health, Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, NY.
Holly ElserFrom the School of Public Health, University of California at Berkeley, Berkeley, CA.
Deborah KarasekDepartment of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, CA.
Ralph CatalanoFrom the School of Public Health, University of California at Berkeley, Berkeley, CA.

Funding

The Impact of Unconventional Natural Gas Development on Maternal, Perinatal, and Childhood Health: an Electronic Health Record ApproachR00ES027023 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CASEY, JOAN A · 2019 to 2021
$747k
The impact of unconventional natural gas development on maternal, perinatal, and childhood health: An electronic health record approachK99ES027023 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI CASEY, JOAN A · 2017 to 2018
$203k
NIEHS NIH HHS K99 ES027023NIEHS NIH HHS R00 ES027023
6 · The paper itself

Abstract

backgroundThe Icelandic volcano Laki erupted from June 1783 through January 1784. It produced 122 megatons of sulfur dioxide, particulate matter, and acid rain and contributed to one of the coldest winters on record in Western Europe. Although uncontrollable volcanic eruptions continue, few studies have investigated their perinatal health implications.

methodsUsing the Human Mortality Database, we assessed the association between the Laki event and the secondary sex ratio, infant mortality rates, and the number of births from 1751 to 1800 with time-series models that controlled for temporal trends.

resultsThe secondary sex ratio decreased 3% below expected levels in 1784 (95% CI = -4%, -1%). Both female and male infant mortality rates exceeded expectation in 1785, by 54% (95% CI = 25%, 83%) and 37% (-1%, 74%), respectively. We observed little change in female live births but a reduction in male live births in 1784.

conclusionsOur findings are consistent with the hypothesis that the large-scale Laki volcanic eruptions of 1783-1784 resulted in adverse perinatal health outcomes in Sweden.

Indexed as

Databases, FactualFemaleHistory, 18th CenturyHumansInfantInfant MortalityInfant, NewbornMalePregnancyPrenatal Exposure Delayed EffectsSex RatioSmokeSwedenVolcanic EruptionsSmoke

Identifiers

PMID30789427
PMCPMC6456407

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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.