Evidence map›Paper›PMID 33230172›Full record

ArticleNPJ schizophrenia2020

Polygenic risk scores for late smoking initiation associated with the risk of schizophrenia.

Kazutaka Ohi, Daisuke Nishizawa, Yukimasa Muto, Shunsuke Sugiyama, Junko Hasegawa, Midori Soda, Kiyoyuki Kitaichi, Ryota Hashimoto, Toshiki Shioiri, Kazutaka Ikeda

Open access · goldAbstract read
In one paragraph

Article in NPJ schizophrenia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 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

10 authors at 4 institutions in 1 country.

Kazutaka OhiDepartment of Psychiatry and Psychotherapy, Gifu University Graduate School of Medicine, Gifu, Japan. k_ohi@gifu-u.ac.jp.
Daisuke NishizawaAddictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
Yukimasa MutoDepartment of Psychiatry and Psychotherapy, Gifu University Graduate School of Medicine, Gifu, Japan.
Shunsuke SugiyamaDepartment of Psychiatry and Psychotherapy, Gifu University Graduate School of Medicine, Gifu, Japan.
Junko HasegawaAddictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
Midori SodaDepartment of Biomedical Pharmaceutics, Gifu Pharmaceutical University, Gifu, Japan.
Kiyoyuki KitaichiDepartment of Biomedical Pharmaceutics, Gifu Pharmaceutical University, Gifu, Japan.
Ryota HashimotoDepartment of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
Toshiki ShioiriDepartment of Psychiatry and Psychotherapy, Gifu University Graduate School of Medicine, Gifu, Japan.
Kazutaka IkedaAddictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
Gifu University · JPTokyo Metropolitan Institute of Medical Science · JPGifu Pharmaceutical University · JPOsaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Patients with schizophrenia display characteristic smoking-related behaviors and genetic correlations between smoking behaviors and schizophrenia have been identified in European individuals. However, the genetic etiology of the association remains to be clarified. The present study investigated transethnic genetic overlaps between European-based smoking behaviors and the risk of Japanese schizophrenia by conducting polygenic risk score (PRS) analyses. Large-scale European genome-wide association study (GWAS) datasets (n = 24,114-74,035) related to four smoking-related intermediate phenotypes [(i) smoking initiation, (ii) age at smoking initiation, (iii) smoking quantity, and (iv) smoking cessation] were utilized as discovery samples. PRSs derived from these discovery GWASs were calculated for 332 Japanese subjects [schizophrenia patients, their unaffected first-degree relatives (FRs), and healthy controls (HCs)] as a target sample. Based on GWASs of European smoking phenotypes, we investigated the effects of PRSs on smoking phenotypes and the risk of schizophrenia in the Japanese population. Of the four smoking-related behaviors, the PRSs for age at smoking initiation in Europeans significantly predicted the age at smoking initiation (R

Identifiers

PMID33230172
PMCPMC7684279
OpenAlexW3109701013

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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.