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|
| PMID |
|
|
| TITLE |
|
| A genetic analysis of the eating and attitudes associated with bulimia nervosa: dealing with the problem of ascertainment in twin studies. |
|
| ABSTRACT |
|
|
|
| Little is known about the etiology of bulimia nervosa and the attitudes associated with it. We have undertaken a study of selected (45 pairs) and unselected (106 pairs) female twins to elucidate the broad causes of individual differences in these behaviours and attitudes. The selected sample was chosen on the basis of at least one of the twin pair having a lifetime incidence of bulimia nervosa. Biometrical model fitting, which corrected for the biased twin correlations of the ascertained group, was used to investigate the genetic and environmental risk factors contributing to the development of bulimia nervosa. The best-fitting model showed that individual variation was best explained by additive genetic influences (62%) and nonshared environmental influences (38%). The proportion of genetic variance affecting individual variation in the ascertained group and the random group was not found to be significantly different. In summary, it is suggested that it may not be necessary to supplement a randomly selected sample with an ascertained sample when investigating the liability to a low-prevalence psychiatric disorder if a continuous measure of that disorder is available. |
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| DATE PUBLISHED |
|
|
| HISTORY |
|
| PUBSTATUS |
PUBSTATUSDATE |
| pubmed |
1999/06/18 |
| medline |
1999/06/18 00:01 |
| entrez |
1999/06/18 00:00 |
|
| AUTHORS |
|
| NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
| Wade T |
|
Wade |
T |
T |
|
Department of Psychology, Flinders University of South Australia, Australia. tdwade@hsc.vcu.edu |
| Neale MC |
|
Neale |
M C |
MC |
|
|
| Lake RI |
|
Lake |
R I |
RI |
|
|
| Martin NG |
|
Martin |
N G |
NG |
|
|
|
| INVESTIGATORS |
|
|
| JOURNAL |
|
| VOLUME: 29 |
| ISSUE: 1 |
| TITLE: Behavior genetics |
| ISOABBREVIATION: Behav. Genet. |
| YEAR: 1999 |
| MONTH: Jan |
| DAY: |
| MEDLINEDATE: |
| SEASON: |
| CITEDMEDIUM: Print |
| ISSN: 0001-8244 |
| ISSNTYPE: Print |
|
| MEDLINE JOURNAL |
|
| MEDLINETA: Behav Genet |
| COUNTRY: United States |
| ISSNLINKING: 0001-8244 |
| NLMUNIQUEID: 0251711 |
|
| PUBLICATION TYPE |
|
| PUBLICATIONTYPE TEXT |
| Journal Article |
| Research Support, Non-U.S. Gov't |
| Research Support, U.S. Gov't, P.H.S. |
| Twin Study |
|
| COMMENTS AND CORRECTIONS |
|
| REFTYPE |
REFSOURCE |
REFPMID |
NOTE |
| ErratumIn |
Behav Genet 1999 May;29(3):205 |
|
|
|
| GRANTS |
|
| GRANTID |
AGENCY |
COUNTRY |
| AA 07535 |
NIAAA NIH HHS |
United States |
|
| GENERAL NOTE |
|
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| KEYWORDS |
|
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| MESH HEADINGS |
|
| DESCRIPTORNAME |
QUALIFIERNAME |
| Adult |
|
| Australia |
epidemiology |
| Body Image |
epidemiology |
| Bulimia |
genetics |
| Female |
genetics |
| Humans |
genetics |
| Longitudinal Studies |
genetics |
| Middle Aged |
genetics |
| Models, Genetic |
genetics |
| Patient Selection |
genetics |
| Sampling Studies |
genetics |
| Self Concept |
genetics |
| Statistics as Topic |
genetics |
| Twins, Dizygotic |
genetics |
| Twins, Monozygotic |
genetics |
|
| SUPPLEMENTARY MESH |
|
|
| GENE SYMBOLS |
|
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| CHEMICALS |
|
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| OTHER ID's |
|
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|
