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| PMID |
|
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| TITLE |
|
| Genetic and environmental influences on the co-morbidity between depression, panic disorder, agoraphobia, and social phobia: a twin study. |
|
| ABSTRACT |
|
| BACKGROUND |
NlmCategory: BACKGROUND |
| Major depression (MD) and anxiety disorders such as panic disorder (PD), agoraphobia (AG), and social phobia (SP) are heritable and highly co-morbid. However, the relative importance of genetic and environmental etiology of the covariation between these disorders, particularly the relationship between PD and AG, is less clear. |
| METHODS |
NlmCategory: METHODS |
| Major depression (MD) and anxiety disorders such as panic disorder (PD), agoraphobia (AG), and social phobia (SP) are heritable and highly co-morbid. However, the relative importance of genetic and environmental etiology of the covariation between these disorders, particularly the relationship between PD and AG, is less clear. This study measured MD, PD, and AG in a population sample of 5,440 twin pairs and 1,245 single twins, about 45% of whom were also scored for SP. Prevalences, within individual co-morbidity and twin odds ratios for co-morbidity, are reported. A behavioral genetic analysis of the four disorders using the classical twin design was conducted. |
| RESULTS |
NlmCategory: RESULTS |
| Major depression (MD) and anxiety disorders such as panic disorder (PD), agoraphobia (AG), and social phobia (SP) are heritable and highly co-morbid. However, the relative importance of genetic and environmental etiology of the covariation between these disorders, particularly the relationship between PD and AG, is less clear. This study measured MD, PD, and AG in a population sample of 5,440 twin pairs and 1,245 single twins, about 45% of whom were also scored for SP. Prevalences, within individual co-morbidity and twin odds ratios for co-morbidity, are reported. A behavioral genetic analysis of the four disorders using the classical twin design was conducted. Odds ratios for MD, PD, AG, and SP in twins of individuals diagnosed with one of the four disorders were increased. Heritability estimates under a threshold-liability model for MD, PD, AG, and SP respectively were .33 (CI: 0.30-0.42), .38 (CI: 0.24-0.55), .48 (CI: 0.37-0.65), and .39 (CI: 0.16-0.65), with no evidence for any variance explained by the common environment shared by twins. We find that a common genetic factor explains a moderate proportion of variance in these four disorders. The genetic correlation between PD and AG was .83. |
| CONCLUSION |
NlmCategory: CONCLUSIONS |
| Major depression (MD) and anxiety disorders such as panic disorder (PD), agoraphobia (AG), and social phobia (SP) are heritable and highly co-morbid. However, the relative importance of genetic and environmental etiology of the covariation between these disorders, particularly the relationship between PD and AG, is less clear. This study measured MD, PD, and AG in a population sample of 5,440 twin pairs and 1,245 single twins, about 45% of whom were also scored for SP. Prevalences, within individual co-morbidity and twin odds ratios for co-morbidity, are reported. A behavioral genetic analysis of the four disorders using the classical twin design was conducted. Odds ratios for MD, PD, AG, and SP in twins of individuals diagnosed with one of the four disorders were increased. Heritability estimates under a threshold-liability model for MD, PD, AG, and SP respectively were .33 (CI: 0.30-0.42), .38 (CI: 0.24-0.55), .48 (CI: 0.37-0.65), and .39 (CI: 0.16-0.65), with no evidence for any variance explained by the common environment shared by twins. We find that a common genetic factor explains a moderate proportion of variance in these four disorders. The genetic correlation between PD and AG was .83. MD, PD, AG, and SP strongly co-aggregate within families and common genetic factors explain a moderate proportion of variance in these four disorders. The high genetic correlation between PD and AG and the increased odds ratio for PD and AG in siblings of those with AG without PD suggests a common genetic etiology for PD and AG. |
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| DATE PUBLISHED |
|
|
| HISTORY |
|
| PUBSTATUS |
PUBSTATUSDATE |
| entrez |
2009/09/15 06:00 |
| pubmed |
2009/09/15 06:00 |
| medline |
2010/02/02 06:00 |
|
| AUTHORS |
|
| NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
| Mosing MA |
|
Mosing |
Miriam A |
MA |
|
Queensland Institute of Medical Research, Brisbane, QLD 4029, Australia. miriam.mosing@qimr.edu.au |
| Gordon SD |
|
Gordon |
Scott D |
SD |
|
|
| Medland SE |
|
Medland |
Sarah E |
SE |
|
|
| Statham DJ |
|
Statham |
Dixie J |
DJ |
|
|
| Nelson EC |
|
Nelson |
Elliot C |
EC |
|
|
| Heath AC |
|
Heath |
Andrew C |
AC |
|
|
| Martin NG |
|
Martin |
Nicholas G |
NG |
|
|
| Wray NR |
|
Wray |
Naomi R |
NR |
|
|
|
| INVESTIGATORS |
|
|
| JOURNAL |
|
| VOLUME: 26 |
| ISSUE: 11 |
| TITLE: Depression and anxiety |
| ISOABBREVIATION: Depress Anxiety |
| YEAR: 2009 |
| MONTH: |
| DAY: |
| MEDLINEDATE: |
| SEASON: |
| CITEDMEDIUM: Internet |
| ISSN: 1520-6394 |
| ISSNTYPE: Electronic |
|
| MEDLINE JOURNAL |
|
| MEDLINETA: Depress Anxiety |
| COUNTRY: United States |
| ISSNLINKING: 1091-4269 |
| NLMUNIQUEID: 9708816 |
|
| PUBLICATION TYPE |
|
| PUBLICATIONTYPE TEXT |
| Journal Article |
| Research Support, N.I.H., Extramural |
| Research Support, Non-U.S. Gov't |
| Twin Study |
|
| COMMENTS AND CORRECTIONS |
|
| REFTYPE |
REFSOURCE |
REFPMID |
NOTE |
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|
|
| GRANTS |
|
| GRANTID |
AGENCY |
COUNTRY |
| R01 AA007535 |
NIAAA NIH HHS |
United States |
| R01 AA013446 |
NIAAA NIH HHS |
United States |
| R01 AA007535-08 |
NIAAA NIH HHS |
United States |
| R01 AA010249-04 |
NIAAA NIH HHS |
United States |
| R01 AA007728 |
NIAAA NIH HHS |
United States |
| R01 AA013446-05 |
NIAAA NIH HHS |
United States |
| AA07728 |
NIAAA NIH HHS |
United States |
| R01 AA010249 |
NIAAA NIH HHS |
United States |
| R01 AA007728-05 |
NIAAA NIH HHS |
United States |
| R37 AA007728 |
NIAAA NIH HHS |
United States |
|
| GENERAL NOTE |
|
|
| KEYWORDS |
|
|
| MESH HEADINGS |
|
| DESCRIPTORNAME |
QUALIFIERNAME |
| Adult |
|
| Aged |
|
| Aged, 80 and over |
|
| Agoraphobia |
psychology |
| Comorbidity |
psychology |
| Depressive Disorder, Major |
psychology |
| Diseases in Twins |
psychology |
| Female |
psychology |
| Genetic Predisposition to Disease |
genetics |
| Genome-Wide Association Study |
genetics |
| Humans |
genetics |
| Interview, Psychological |
genetics |
| Male |
genetics |
| Middle Aged |
genetics |
| Models, Genetic |
genetics |
| Multivariate Analysis |
genetics |
| Panic Disorder |
psychology |
| Phenotype |
psychology |
| Phobic Disorders |
psychology |
| Queensland |
psychology |
| Social Environment |
psychology |
| Statistics as Topic |
psychology |
| Young Adult |
psychology |
|
| SUPPLEMENTARY MESH |
|
|
| GENE SYMBOLS |
|
|
| CHEMICALS |
|
|
| OTHER ID's |
|
|
|
