Evidence map›Paper›PMID 29175297›Full record

ArticleJournal of psychiatric research2018

Impulsivity in unaffected adolescent biological relatives of schizophrenia patients.

Beng-Choon Ho, Amy B Barry, Julie A Koeppel

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Article in Journal of psychiatric research, 2018. 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
1.5field-weighted citation impact, top 18% 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

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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, 23 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Beng-Choon HoDepartment of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA. Electronic address: beng-ho@uiowa.edu.
Amy B BarryDepartment of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
Julie A KoeppelDepartment of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
University of Iowa · US

Funding

Adolescent Cannabis Use, Complex Brain Network Connectivity & Schizophrenia RiskR01MH097751 · NIMH · UNIVERSITY OF IOWA · PI HO, BENG-CHOON · 2013 to 2017
$3.3M
NIMH NIH HHS R01 MH097751
6 · The paper itself

Abstract

objectiveAlthough schizophrenia is not a prototypic impulse-control disorder, patients report more impulsive behaviors, have higher rates of substance use, and show dysfunction in brain circuits that underlie impulsivity. We investigate impulsivity in unaffected biological relatives of schizophrenia patients to further understand the relationships between schizophrenia risk and impulse control during adolescence.

methodGroup differences in impulsivity (UPPS-P Impulsive Behavior Scale and delay discounting) were tested in 210 adolescents contrasting 39 first- and 53 second-degree biological relatives of schizophrenia patients, and 118 subjects with no schizophrenia family history (NSFH).

resultsCompared to NSFH adolescents and to second-degree relatives, first-degree relatives of schizophrenia patients had increased impulsivity-related behaviors (higher UPPS-P Perseverance, Positive Urgency and Premeditation subscale scores) and greater preference for immediate rewards (smaller AUC and larger discounting constant). Second-degree relatives did not differ significantly from NSFH adolescents on self-report impulsive behaviors or on measures of impulsive decision-making. These group differences remained even after careful consideration of potential confounding factors.

conclusionImpulsivity is associated with schizophrenia risk, and its severity increases with greater familial relatedness to the schizophrenia proband. Additional studies are needed to understand the role impulsivity may play in mediating schizophrenia susceptibility during adolescence.

Indexed as

Disease SusceptibilityAdolescentAdolescent BehaviorChildDisruptive, Impulse Control, and Conduct DisordersFamilyFemaleHumansImpulsive BehaviorMaleRiskSchizophreniaSeverity of Illness IndexEndophenotypeFamily studiesImpulse control disordersNeurodevelopmentSubstance use disorders

Identifiers

PMID29175297
PMCPMC5742548
OpenAlexW2769373650

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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.