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| PMID |
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| TITLE |
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| Genetic and environmental influences on gambling disorder liability: a replication and combined analysis of two twin studies. |
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| ABSTRACT |
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| BACKGROUND |
NlmCategory: BACKGROUND |
| Gambling disorder (GD), recognized in Diagnostic and Statistical Manual of Mental Disorders, Version 5 (DSM-5) as a behavioral addiction, is associated with a range of adverse outcomes. However, there has been little research on the genetic and environmental influences on the development of this disorder. This study reports results from the largest twin study of GD conducted to date. |
| METHODS |
NlmCategory: METHODS |
| Replication and combined analyses were based on samples of 3292 (mean age 31.8, born 1972-79) and 4764 (mean age 37.7, born 1964-71) male, female, and unlike-sex twin pairs from the Australian Twin Registry. Univariate biometric twin models estimated the proportion of variation in the latent GD liability that could be attributed to genetic, shared environmental, and unique environmental factors, and whether these differed quantitatively or qualitatively for men and women. |
| RESULTS |
NlmCategory: RESULTS |
| In the replication study, when using a lower GD threshold, there was evidence for significant genetic (60%; 95% confidence interval (CI) 45-76%) and unique environmental (40%; 95% CI 24-56%), but not shared environmental contributions (0%; 95% CI 0-0%) to GD liability; this did not significantly differ from the original study. In the combined analysis, higher GD thresholds (such as one consistent with DSM-5 GD) and a multiple threshold definitions of GD yielded similar results. There was no evidence for quantitative or qualitative sex differences in the liability for GD. |
| CONCLUSIONS |
NlmCategory: CONCLUSIONS |
| Twin studies of GD are few in number but they tell a remarkably similar story: substantial genetic and unique environmental influences, with no evidence for shared environmental contributions or sex differences in GD liability. |
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| DATE PUBLISHED |
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| HISTORY |
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| PUBSTATUS |
PUBSTATUSDATE |
| entrez |
2018/08/31 06:00 |
| pubmed |
2018/08/31 06:00 |
| medline |
2018/08/31 06:00 |
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| AUTHORS |
|
| NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
| Davis CN |
|
Davis |
Christal N |
CN |
|
University of Missouri,Columbia, MO,USA. |
| Slutske WS |
|
Slutske |
Wendy S |
WS |
|
University of Missouri,Columbia, MO,USA. |
| Martin NG |
|
Martin |
Nicholas G |
NG |
|
QIMR Berghofer,Brisbane, Queensland,Australia. |
| Agrawal A |
|
Agrawal |
Arpana |
A |
|
Washington University School of Medicine,St. Louis, MO,USA. |
| Lynskey MT |
|
Lynskey |
Michael T |
MT |
|
King's College London Institute of Psychiatry, Psychology & Neuroscience,London,UK. |
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| INVESTIGATORS |
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| JOURNAL |
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| VOLUME: |
| ISSUE: |
| TITLE: Psychological medicine |
| ISOABBREVIATION: Psychol Med |
| YEAR: 2018 |
| MONTH: Aug |
| DAY: 30 |
| MEDLINEDATE: |
| SEASON: |
| CITEDMEDIUM: Internet |
| ISSN: 1469-8978 |
| ISSNTYPE: Electronic |
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| MEDLINE JOURNAL |
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| MEDLINETA: Psychol Med |
| COUNTRY: England |
| ISSNLINKING: 0033-2917 |
| NLMUNIQUEID: 1254142 |
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| PUBLICATION TYPE |
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| PUBLICATIONTYPE TEXT |
| Journal Article |
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| COMMENTS AND CORRECTIONS |
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| GRANTS |
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| GRANTID |
AGENCY |
COUNTRY |
| R01 DA018267 |
NIDA NIH HHS |
United States |
| R01 MH066206 |
NIMH NIH HHS |
United States |
| T32 AA013526 |
NIAAA NIH HHS |
United States |
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| GENERAL NOTE |
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| KEYWORDS |
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| KEYWORD |
| Behavioral genetics |
| gambling disorder |
| sex differences |
| twins |
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| MESH HEADINGS |
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| SUPPLEMENTARY MESH |
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| GENE SYMBOLS |
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| CHEMICALS |
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| OTHER ID's |
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