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01.12.2014 | Research | Ausgabe 1/2014 Open Access

International Journal of Mental Health Systems 1/2014

Spatial analysis of schizotypal personality traits in Chinese male youths: evidence from a GIS-based analysis of Sichuan

International Journal of Mental Health Systems > Ausgabe 1/2014
Jiaxi Zhang, Wei Wang, Zhijun Tan, Qing Wu, Wei Xiao, Lei Shang, Yan Zhang, Jiaxi Peng, Danmin Miao
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1752-4458-8-3) contains supplementary material, which is available to authorized users.
Jiaxi Zhang, Wei Wang, Zhijun Tan contributed equally to this work.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

Conceived and designed the experiments: JZ WW ZT WX DM. Performed the experiments: JZ QU WX JP. Analyzed the data: ZT YZ LS. Contributed reagents/materials/analysis tools: WX DM YZ LS. Wrote the paper: JZ WW WX DM. All authors read and approved the final manuscript.



Schizotypal personality traits are associated with schizophrenia spectrum disorders, stating that schizotypal traits may represent a “prodrome” or other developmental precursor of schizophrenia. Genetic and environmental factors both play importanxt roles in the development of schizotypal traits. Different levels of schizotypal traits across regions may be indicative of similar differences in the incidence of schizophrenia.


The present study identifying where in a given region, schizotypal personality traits are more or less level of schizotypal personality scores in Chinese male youth of Sichuan province. Not only for research purposes but also for the evaluation of new draft and allocation policy initiatives intended to aid recruitment of mental health employees.


Data from the Psychological Selection Systems for Chinese Recruits, a mental health screening system used in China, collected in 2011 (67,558 copies) were used to map spatial distribution of schizotypal personality traits using geostatistics and geographic information system (GIS) techniques. Correlation analyses were conducted to explore the effects of years of education and illiterate rate on schizotypal personality traits.


Maps for three schizotypal personality clinical scales (dissociative, Dit; neurotic, Net and sensitive, Set) showed similar geographical trends. The highest T scores were distributed mainly in the eastern and northern counties of Sichuan, with scores decreasing successively from east to west, with the eastern counties generally showing higher scores. Correlation analysis showed that t-scores of Set were negatively correlated with years of education, whereas t-scores of Net were negatively correlated with illiteracy rate.


Schizotypal personality traits in male youth showed specific geographical trends in Sichuan province, providing some evidence that kriging based on GIS can be used to geographically localize genetic and environmental factors associated with schizotypal personality traits. This approach could be used to help allocate public health resources to specific areas and could also have personnel selection applications.
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