Department of Educational Sciences, University of La Rioja, Spain; Centro de Investigación en Biomédica en Red de Salud Mental (CIBERSAM), Oviedo, Spain.
Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijng, China.
Schizophr Res. 2018 Sep;199:128-134. doi: 10.1016/j.schres.2018.03.021. Epub 2018 Mar 19.
Schizotypal traits are expressions of underlying vulnerability to psychotic disorders which have a potential impact on mental health status, neurocognition, quality of life, and daily functioning. To date, little research has examined epidemiologic landscape of schizotypal traits at the cross-national level. Our aim was to study the expression of schizotypal traits by sex, age, and country in a combined sample gathered from 12 countries.
A total of 27,001 participants completed the Schizotypal Personality Questionnaire (SPQ). The mean age of participants was 22.12 (SD=6.28); 37.5% (n=10,126) were males.
Schizotypal traits varied according to sex, age, and country. Females scored higher than males in the positive dimension, whereas males scored higher in the disorganization dimension. By age, a significant decrease in the positive schizotypal traits was observed. Epidemiological expression of schizotypal traits varied by country. Moreover, several interactions by sex, age, and country were found.
This pattern is similar to those found in patients with psychosis and psychotic-like experiences. These findings provide new insights and the opportunity to explore the phenotypic expression of schizotypal traits at cross-national level.
精神分裂症特质是潜在的精神病发病倾向的表现，对心理健康状况、神经认知、生活质量和日常功能有潜在影响。迄今为止，很少有研究在跨国层面上研究精神分裂症特质的流行病学情况。我们的目的是研究在来自 12 个国家的综合样本中，性别、年龄和国家对精神分裂症特质表达的影响。
共有 27001 名参与者完成了精神分裂症人格问卷（SPQ）。参与者的平均年龄为 22.12（SD=6.28）；37.5%（n=10126）为男性。
精神分裂症特质因性别、年龄和国家而异。女性在正性维度上的得分高于男性，而男性在紊乱维度上的得分较高。按年龄划分，正性精神分裂症特质显著下降。精神分裂症特质的流行病学表现因国家而异。此外，还发现了一些性别、年龄和国家的相互作用。
这种模式与精神病患者和类似精神病体验者的发现相似。这些发现提供了新的见解，并为在跨国层面上探索精神分裂症特质的表型表达提供了机会。
