Indian Journal of PsychiatryIndian Journal of Psychiatry
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REVIEW ARTICLE (INVITED)
Year : 2020  |  Volume : 62  |  Issue : 5  |  Page : 462-469

A systematic review of personality temperament models related to somatoform disorder with main focus on meta-analysis of Cloninger's theory components


1 Neurosciences Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
2 Department of Psychology, University of Kurdistan, Sanandaj, Iran
3 Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
4 Neurosciences Research Center, Research Institute for Health Development; Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran

Correspondence Address:
Saeid Komasi
Neurosciences Research Center, Kurdistan University of Medical Sciences, Pasdaran Boulevard, Sanandaj
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/psychiatry.IndianJPsychiatry_345_20

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The systematic review aims to identify four personality temperament models related to somatoform disorder with the main focus on the meta-analysis of temperaments and characters in Cloninger's theory. The literature search was performed on PubMed (Medline), Scopus, Web of Science, Cochrane, and ProQuest for all articles published in English from January 1990 to April 2019. Due to heterogeneity, pooled estimates of the standard mean difference between cases and controls were calculated using the random-effects model. Based on our inclusion criteria, 14 studies were identified, 7 of which were included in the meta-analysis. The results show that there is a significant difference between cases and controls with regard to harm avoidance (HA) (z = 5.322, P < 0.001), self-directedness (z = −4.719, P < 0.001), and self-transcendence (z = 2.848, P = 0.004). Compared to controls, HA and self-transcendence were higher and self-directedness was lower in cases. With regard to other subscales, there was no difference between the two groups (P > 0.05). The publication bias was not seen (P > 0.05 for Egger statistics). Up to now, very few studies have been focused on the relationship between personality temperament models and somatoform disorder. Among the components of the Cloninger's model, the poor self-directedness along with the abnormally high self-transcendence and HA is the personality component related to the somatoform disorder. Thus, Cloninger's model may potentially draw a personality profile for vulnerability to somatoform disorder. Given the limited number of studies available, future studies may challenge the results of the present study.



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