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Psychol Med. 2001 May;31(4):737-40.

Genetic and environmental influences on anorexia nervosa syndromes in a population-based twin sample.

Author information

1
Department of Psychology, Michigan State University, East Lansing, USA.

Abstract

BACKGROUND:

Genetic and environmental influences on broadly-defined anorexia nervosa (AN) syndrome were examined in a population-based twin sample.

METHODS:

AN syndrome was assessed in 672 female 17 year-old twins using structured interviews and a self-report questionnaire.

RESULTS:

Twenty-six probands with AN syndrome were identified. Biometrical model-fitting analyses indicated that genetic and non-shared environmental factors accounted for 74% and 26% of the variance in AN syndrome, respectively.

CONCLUSIONS:

Findings support previous research indicating significant genetic and non-shared environmental influences on AN syndromes.

PMID:
11352375
DOI:
10.1017/s0033291701003725
[Indexed for MEDLINE]

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