Body dissatisfaction and drive for thinness in young adult twins

被引:73
作者
Keski-Rahkonen, A
Bulik, CM
Neale, BM
Rose, RJ
Rissanen, A
Kaprio, J
机构
[1] Columbia Univ, Mailman Sch Publ Hlth, Dept Epidemiol, New York, NY 10032 USA
[2] Univ Helsinki, Dept Publ Hlth, Helsinki, Finland
[3] Univ Helsinki, Cent Hosp, Dept Psychiat, Helsinki, Finland
[4] Univ N Carolina, Dept Psychiat, Chapel Hill, NC USA
[5] Kings Coll London, Social Genet & Dev Psychol Ctr, London WC2R 2LS, England
[6] Indiana Univ, Dept Psychol, Bloomington, IN USA
[7] Natl Publ Hlth Inst, Dept Mental Hlth, Helsinki, Finland
关键词
body dissatisfaction; drive for thinness; twin study; gender differences;
D O I
10.1002/eat.20138
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
Objective: We explored correlates of the Eating Disorder Inventory subscales Body Dissatisfaction (BD) and Drive for Thinness (DT) and genetic and environmental influences on these traits. Method: In a population-based sample of 4,667 Finnish twins aged 22-27 years, we conducted twin modeling to explore genetic and environmental contributions to body dissatisfaction and drive for thinness. Logistic regression was used for the correlational analysis. Results: Various eating and body size-related factors and psychosomatic symptoms were significantly associated with high body dissatisfaction and drive for thinness in both genders. In women, early puberty onset, early initiation of sexual activity, and multiple sex partners were statistically significant risk factors of body dissatisfaction. In gender-specific univariate twin models, additive genes accounted for 59.4% (95% confidence interval [CI] = 53.2-64.7%) of the variance in body dissatisfaction and for 51.0% (95% Cl = 43.7-57.5%) of the variance in drive for thinness among females, but for none of the variance among males. Discussion: There are very distinct gender differences in the heritability patterns of body dissatisfaction and drive for thinness in young adults. (c) 2005 by Wiley Periodicals, Inc.
引用
收藏
页码:188 / 199
页数:12
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