Evidence map›Paper›PMID 40518280›Full record

ArticleNeurologia medico-chirurgica2025

The Declining Incidence Rate of Subarachnoid Hemorrhage in Four Local Japanese Regions Is Greater in Women than in Men: Japan Incidence of Subarachnoid Hemorrhage Study.

Shingo Matsuda, Fusao Ikawa, Toshikazu Hidaka, Shuhei Yamaguchi, Tetsuji Inagawa, Nobutaka Horie, Kaoru Kurisu, Nao Ichihara, Yoshihito Goto, Takeo Nakayama and 7 more

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Article in Neurologia medico-chirurgica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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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

17 authors.

Shingo MatsudaDepartment of Neurosurgery, Shimane Prefectural Central Hospital.
Fusao IkawaDepartment of Neurosurgery, Shimane Prefectural Central Hospital.
Toshikazu HidakaDepartment of Neurosurgery, Shimane Prefectural Central Hospital.
Shuhei YamaguchiDepartment of Neurology, Shimane Prefectural Central Hospital.
Tetsuji InagawaDepartment of Neurosurgery, Araki Neurosurgical Hospital.
Nobutaka HorieDepartment of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University.
Kaoru KurisuDepartment of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University.
Nao IchiharaDepartment of Medical Innovation, The University of Osaka.
Yoshihito GotoClinical Research Center, National Hospital Organization Kyoto Medical Center.
Takeo NakayamaDepartment of Health Informatics, School of Public Health, Graduate School of Medicine, Kyoto University.
Hitoshi FukudaDepartment of Neurosurgery, Kochi Medical School, Kochi University.
Tetsuya UebaDepartment of Neurosurgery, Kochi Medical School, Kochi University.
Masahiro SasakiResearch Department for Stroke Prevention, Akita Cerebrospinal and Cardiovascular Center.
Tatsuya IshikawaResearch Department for Stroke Prevention, Akita Cerebrospinal and Cardiovascular Center.
Norihito ShimamuraDepartment of Neurosurgery, Hirosaki University Graduate School.
Hiroki OhkumaDepartment of Neurosurgery, Hirosaki University Graduate School.
JIS Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Female sex is an independent risk factor for subarachnoid hemorrhage. Additionally, the global decline in the incidence rate of subarachnoid hemorrhage is more apparent in men than in women, except in Japan. We examined sex-specific trends in the incidence rates of subarachnoid hemorrhage in four Japanese regions. An epidemiological study was conducted to identify the estimated age-adjusted incidence rate of subarachnoid hemorrhage per 100,000 person-years by sex in Aomori, Akita, Kochi, and Shimane Prefectures from 2000 to 2017, calculated by the age-adjusted mortality and case-fatality rates (assumed to be 35%). The estimated age-adjusted incidence rate of subarachnoid hemorrhage in each region decreased in both sexes between 2000 and 2017; the rates of change were significantly higher in women (43.1%) than in men (36.6%; p = 0.021). This study revealed declining trends in the estimated age-adjusted incidence rate of subarachnoid hemorrhage in four Japanese prefectures from 2000 to 2017; this was more apparent in women. The underlying etiology for the female-dominant declining trend in the estimated age-adjusted incidence rate of subarachnoid hemorrhage should be further investigated.

Indexed as

Subarachnoid HemorrhageAdultAgedAged, 80 and overEast Asian PeopleFemaleHumansIncidenceJapanMaleMiddle AgedRisk FactorsSex DistributionSex Factorsaging populationincidenceregister-based studysubarachnoid hemorrhage

Identifiers

PMID40518280
PMCPMC12412028

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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.