Evidence map›Paper›PMID 21706238›Full record

ArticleSocial psychiatry and psychiatric epidemiology2012

Does the 'hikikomori' syndrome of social withdrawal exist outside Japan? A preliminary international investigation.

Takahiro A Kato, Masaru Tateno, Naotaka Shinfuku, Daisuke Fujisawa, Alan R Teo, Norman Sartorius, Tsuyoshi Akiyama, Tetsuya Ishida, Tae Young Choi, Yatan Pal Singh Balhara and 10 more

Abstract read
In one paragraph

Article in Social psychiatry and psychiatric epidemiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

91 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Parental bonding and attachment in the hikikomori trajectory.Psychiatry and clinical neurosciences · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Hikikomori Risk in the UK.The International journal of social psychiatry · 2025
    Article
  10. Article
  11. Article
  12. Global psychiatrists' opinions aboutPCN reports : psychiatry and clinical neurosciences · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Investigating the Overlap ofMedicina (Kaunas, Lithuania) · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. Review

31 more citing papers are in PubMed but not listed here.

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

20 authors.

Takahiro A KatoDepartment of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan. takahiro@npsych.med.kyushu-u.ac.jp
Masaru Tateno
Naotaka Shinfuku
Daisuke Fujisawa
Alan R Teo
Norman Sartorius
Tsuyoshi Akiyama
Tetsuya Ishida
Tae Young Choi
Yatan Pal Singh Balhara
Ryohei Matsumoto
Wakako Umene-Nakano
Yota Fujimura
Anne Wand
Jane Pei-Chen Chang
Rita Yuan-Feng Chang
Behrang Shadloo
Helal Uddin Ahmed
Tiraya Lerthattasilp
Shigenobu Kanba

Funding

MENTORED PATIENT-ORIENTED RESEARCH CAREER DEVELOPMENT AWK23RR015533 · NCRR · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI MATHEWS, CAROL A. · 2000 to 2004
$608k
NCRR NIH HHS K23 RR015533
6 · The paper itself

Abstract

purposeTo explore whether the 'hikikomori' syndrome (social withdrawal) described in Japan exists in other countries, and if so, how patients with the syndrome are diagnosed and treated.

methodsTwo hikikomori case vignettes were sent to psychiatrists in Australia, Bangladesh, India, Iran, Japan, Korea, Taiwan, Thailand and the USA. Participants rated the syndrome's prevalence in their country, etiology, diagnosis, suicide risk, and treatment.

resultsOut of 247 responses to the questionnaire (123 from Japan and 124 from other countries), 239 were enrolled in the analysis. Respondents' felt the hikikomori syndrome is seen in all countries examined and especially in urban areas. Biopsychosocial, cultural, and environmental factors were all listed as probable causes of hikikomori, and differences among countries were not significant. Japanese psychiatrists suggested treatment in outpatient wards and some did not think that psychiatric treatment is necessary. Psychiatrists in other countries opted for more active treatment such as hospitalization.

conclusionsPatients with the hikikomori syndrome are perceived as occurring across a variety of cultures by psychiatrists in multiple countries. Our results provide a rational basis for study of the existence and epidemiology of hikikomori in clinical or community populations in international settings.

Indexed as

InternationalityMental DisordersAdultHumansJapanMiddle AgedObsessive-Compulsive DisorderSocial IsolationSurveys and QuestionnairesSyndrome

Identifiers

PMID21706238
PMCPMC4909153

What OpenQuestion holds

Textmetadata
LicenceTDM
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.