Evidence map›Paper›PMID 31269095›Full record

ArticleRevista brasileira de psiquiatria (Sao Paulo, Brazil : 1999)

Megacities, migration and an evolutionary approach to bipolar disorder: a study of Sardinian immigrants in Latin America.

Mauro G Carta, Maria F Moro, Martina Piras, Vanessa Ledda, Eleonora Prina, Serena Stocchino, Germano Orrù, Ferdinando Romano, Maria V Brasesco, Rafael C Freire and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Revista brasileira de psiquiatria (Sao Paulo, Brazil : 1999). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-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

9 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Observational
  3. Virtual reality, social intelligence, mirror neurons, and bipolar spectrum: a new perspective.Revista brasileira de psiquiatria (Sao Paulo, Brazil : 1999) · 2025
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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

12 authors at 6 institutions in 4 countries.

Mauro G CartaDipartimento di Scienze Mediche e Sanità Pubblica, Università di Cagliari, Cagliari, Italy.ORCID http://orcid.org/0000-0003-0706-9687
Maria F MoroMailman School of Public Health, Columbia University, New York, NY, USA.
Martina PirasDipartimento di Scienze Mediche e Sanità Pubblica, Università di Cagliari, Cagliari, Italy.
Vanessa LeddaDipartimento di Scienze Mediche e Sanità Pubblica, Università di Cagliari, Cagliari, Italy.
Eleonora PrinaDipartimento di Scienze Mediche e Sanità Pubblica, Università di Cagliari, Cagliari, Italy.
Serena StocchinoDipartimento di Scienze Mediche e Sanità Pubblica, Università di Cagliari, Cagliari, Italy.
Germano OrrùDipartimento di Scienze Chirurgiche, Università di Cagliari, Cagliari, Italy.
Ferdinando RomanoUniversità La Sapienza, Rome, Italy.
Maria V BrasescoFacultad de Humanidades, Universidad del Museo Social Argentino, Buenos Aires, Argentina.
Rafael C FreireInstituto de Psiquiatria (IPUB), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
Antonio E NardiInstituto de Psiquiatria (IPUB), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.ORCID http://orcid.org/0000-0002-2152-4669
Leonardo TondoCentro Lucio Bini Cagliari, Cagliari/Rome, Italy.
University of Cagliari · ITUniversidade Federal do Rio de Janeiro · BRColumbia University · USHarvard University · USSapienza University of Rome · ITUniversity of Argentine Social Museum · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine whether people with a Sardinian genetic background who live in the megacities of South America have a higher frequency of hypomania than residents of Sardinia.

methodsA community survey of Sardinian immigrants was carried out in four Brazilian metropoles (n=218) and Buenos Aires (n=306). The results were compared with those of a study involving a similar methodology (Mood Disorder Questionnaire [MDQ] as a screening tool) conducted in seven Italian regions, including a sub-sample from Sardinia.

resultsThere was a higher prevalence of lifetime hypomania among Sardinians living in the Brazilian metropoles than among those living in Sardinia. This result was also consistent with Sardinian immigrants in Buenos Aires. After stratification by sex and age, the lifetime prevalence of MDQ scores ≥ 8 among Sardinians in South-American megacities and Sardinia was 8.6% vs. 2.9%, respectively (p < 0.0001).

conclusionsThe higher frequency of hypomania in migrant populations appears to favor an evolutionary view in which mood disorders may be a maladaptive aspect of a genetic background with adaptive characteristics.

Indexed as

AdultAge DistributionArgentinaBipolar DisorderBrazilCitiesCross-Cultural ComparisonFemaleHumansItalyMalePrevalenceRisk FactorsSex DistributionSurveys and QuestionnairesTransients and Migrants

Identifiers

PMID31269095
PMCPMC6986479
OpenAlexW2954805315

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.