Evidence map›Paper›PMID 31102549›Full record

ArticleActa psychiatrica Scandinavica2019

Geographic proximity is associated with transmission of suicidal behaviour among siblings.

A C Edwards, H Ohlsson, E K Mościcki, J Sundquist, K Sundquist, K S Kendler

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Acta psychiatrica Scandinavica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.5field-weighted citation impact, top 28% 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

0 citing papers in PubMed, 4 citations in OpenAlex.

No citing paper in PubMed yet.

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 4 institutions in 3 countries.

A C EdwardsVirginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA.ORCID 0000-0002-4006-9710
H OhlssonCenter for Primary Health Care Research, Lund University, Malmö, Sweden.
E K MościckiDepartment of Epidemiology and Biostatistics, Temple University, Philadelphia, PA, USA.ORCID 0000-0001-8235-2621
J SundquistCenter for Primary Health Care Research, Lund University, Malmö, Sweden.ORCID 0000-0001-7228-5015
K SundquistCenter for Primary Health Care Research, Lund University, Malmö, Sweden.
K S KendlerVirginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA.ORCID 0000-0001-8689-6570
Shimane University · JPVirginia Commonwealth University · USLund University · SETemple University · US

Funding

Genetic, Social, and Developmental Epidemiology of Drug Use DisordersR01DA030005 · NIDA · VIRGINIA COMMONWEALTH UNIVERSITY · PI KENNETH SEEDMAN KENDLER, JAN O SUNDQUIST · 2010 to 2026
$7.6M
Social, Developmental and Genetic Epidemiology of Alcohol Use DisordersR01AA023534 · NIAAA · VIRGINIA COMMONWEALTH UNIVERSITY · PI KENDLER, KENNETH SEEDMAN, SUNDQUIST, KRISTINA · 2015 to 2023
$4.0M
The Etiology of Risk: Alcohol Use Disorder and Suicidal BehaviorR01AA027522 · NIAAA · VIRGINIA COMMONWEALTH UNIVERSITY · PI Alexis C Edwards, Kristina Sundquist · 2019 to 2026
$3.5M
Genetic influences on developmental heterogeneity of alcohol use disorderK01AA021399 · NIAAA · VIRGINIA COMMONWEALTH UNIVERSITY · PI EDWARDS, ALEXIS C · 2012 to 2016
$707k
NIAAA NIH HHS K01 AA021399NIAAA NIH HHS R01 AA023534NIAAA NIH HHS R01 AA027522NIDA NIH HHS R01 DA030005NIH HHS
6 · The paper itself

Abstract

objectiveThe aim of this study was to clarify the role of 'contagion', or social transmission, in risk of suicidal behaviour (SB) among siblings.

methodsWe followed Swedish sibling pairs until one of them (S1; N = 111,848) was registered for a suicide attempt or completion. We tested the effect of geographic proximity between siblings on risk of a first SB registration of S1's sibling (S2). To control for familial confounding, we conducted complementary analyses of sibling trios (N = 701), comparing risk in different siblings as a function of their respective proximity to S1.

resultsThe best-fitting model across sibling pairs included an effect of distance between siblings (HR = 0.96, 95% CI = 0.93-0.99). Hazard ratios declined quickly up to 25 km and largely stabilized beyond 150 km. Across all pairs, a larger age difference between siblings was associated with reduced SB risk (HR = 0.96 95% CI = 0.93-0.98). Findings were consistent within the sibling trios.

conclusionsConsistent with the concept of suicide contagion, risk of suicidal behaviour subsequent to a sibling's suicide completion or attempt is higher as a function of sibling closeness. These findings are robust to potentially confounding familial factors.

Indexed as

GeographySiblingsAdolescentAdultFemaleHumansMaleRegistriesRiskSuicide, AttemptedSuicide, CompletedSwedenYoung Adultregistriessiblingssuicidesuicide, attemptedSweden

Identifiers

PMID31102549
PMCPMC6667185
OpenAlexW2946802366

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.