title: Genetic and environmental contributions to perfectionism and its common factors.
abstract: The aims of this study: (1) To evaluate the relative contributions of genetics and environment to perfectionism and it's two constructs: self-oriented, and socially prescribed perfectionism. (2) To clarify genetic and environmental common origins of both personal and social components.
  
  
  METHODS
  Participants were 258 pairs of adolescent Spanish twins. Socially prescribed and self-oriented perfectionism were assessed using the perfectionism subscale of the Eating Disorder Inventory.
  
  
  METHODS
  univariate and bivariate twin models, according to sex. Results; Heritability of self-oriented perfectionism was 23% in boys and 30% in girls, and of socially prescribed perfectionism 39% in boys and 42% in girls. Bivariate analysis suggested a common genetic and environmental pathway model. The genetic correlation between both perfectionisms was 0.981 in boys and 0.704 in girls. The non-shared environmental correlation was 0.254 in boys and 0.259 in girls. Conclusions; genetic influences on perfectionism are moderate during adolescence. Our results point toward a shared genetic component underlying both kind of perfectionism. These findings generate doubts about the hypothesis of a leading role of genetics in the pathogenesis of Self-oriented perfectionism and of environment in socially prescribed. The high genetic correlation seems to indicate that self-oriented and socially prescribed are the same dimension of perfectionism.
authors.affiliation: Department of Psychiatry, "La Fe" Hospital, Valencia, Spain. Electronic address: iranzotatay@hotmail.com.
authors.forename: Carmen
authors.initials: C
authors.lastname: Iranzo-Tatay
authors.affiliation: Psychiatry Investigation Group, Eating Disorders and Children's Psychiatry Department, "La Fe" Hospital, Valencia, Spain.
authors.forename: Natalia
authors.initials: N
authors.lastname: Gimeno-Clemente
authors.affiliation: Department of Psychiatry, "La Fe" Hospital, Valencia, Spain.
authors.forename: Maria
authors.initials: M
authors.lastname: Barberá-Fons
authors.affiliation: Psychologist, department of Psychiatry, "Hospital Univesitario de Albacete", Spain.
authors.forename: M Ángeles
authors.initials: MÁ
authors.lastname: Rodriguez-Campayo
authors.affiliation: Department of Psychiatry, "La Fe" Hospital, Valencia, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Rojo-Bofill
authors.affiliation: Department of Psychiatry, "La Fe" Hospital, Valencia, Spain; CIBER Epidemiology and Public Health (CIBERESP), Spain; Department of Psychiatry, Medicine School, University of Valencia, Spain.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Livianos-Aldana
authors.affiliation: Head of Eating Disorders and Children's Psychiatry Department, Hospital General, Ciudad Real, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Beato-Fernandez
authors.affiliation: Department of Psychiatry, Medicine School, University of Extremadura, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Vaz-Leal
authors.affiliation: Department of Psychiatry, "La Fe" Hospital, Valencia, Spain; CIBER Epidemiology and Public Health (CIBERESP), Spain; Department of Psychiatry, Medicine School, University of Valencia, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Rojo-Moreno
mesh_terms: D000293:Adolescent; D005260:Female; D059647:Gene-Environment Interaction; D006801:Humans; D008297:Male; D010551:Personality / Q000235:genetics*; D012649:Self Concept; D012737:Sex Factors; D012931:Social Environment; D013030:Spain; D014427:Twins
keywords: Adolescents; Environment; Genetics; Perfectionism; Twins