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John L. Dart Library
Closed for Maintenance
Phone: (843) 722-7550
West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 766-6635
Folly Beach Library
9 a.m. - 2 p.m.
*open the 2nd and 4th Saturday
*open the 2nd and 4th Saturday
Phone: (843) 588-2001
Edgar Allan Poe/Sullivan's Island Library
Closed for renovations
Phone: (843) 883-3914
Wando Mount Pleasant Library
9 a.m. - 5 p.m.
Phone: (843) 805-6888
Village Library
9 a.m. - 1 p.m.
Phone: (843) 884-9741
St. Paul's/Hollywood Library
9 a.m. - 5 p.m.
Phone: (843) 889-3300
Otranto Road Library
9 a.m. - 5 p.m.
Phone: (843) 572-4094
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Phone: (843) 849-6161
McClellanville Library
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Keith Summey North Charleston Library
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9 a.m. - 5 p.m.
Phone: (843) 559-1945
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Generalized anxiety disorder and associated factors in adults in the Amazon, Brazil: A population-based study.
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- Author(s): Silva, Marcus T.1 ; Caicedo Roa, Mónica2; Martins, Silvia S.3; da Silva, Andréa Tenório Correia4,5; Galvao, Tais F.6
- Source:
Journal of Affective Disorders. Aug2018, Vol. 236, p180-186. 7p.- Subject Terms:
*GENERALIZED anxiety disorder; *DISEASE progression; *SOCIODEMOGRAPHIC factors; *POISSON regression; *HEALTH status indicators; *MENTAL depression; *COMPARATIVE studies; *RESEARCH methodology; *MEDICAL cooperation; *MEDICAL screening; *POISSON distribution; *PSYCHOLOGICAL tests; *REGRESSION analysis; *RESEARCH; *EVALUATION research; *DISEASE prevalence; *CROSS-sectional method; *ANXIETY disorders; *SELF diagnosis; *STANDARDS; *DIAGNOSIS; *PSYCHOLOGY; RESEARCH evaluation - Source:
- Additional Information
- Subject Terms:
- Abstract:
Background: The purpose of this study was to assess the prevalence and associated factors of generalized anxiety disorder (GAD) in adults using the seven-item GAD scale (GAD-7) and to evaluate the properties of the two-item (GAD-2) as a population screening tool.Methods: We carried out a cross-sectional population-based study in the Manaus Metropolitan Region in 2015, Brazil. Adults aged 18 years or more were eligible to participate. We performed probabilistic three-phase sampling and collected sociodemographic and clinical variables. Descriptive statistics and a Poisson regression with robust variance with corrections for complex sampling were used. The accuracy of GAD-2 was assessed using GAD-7 as the gold standard.Results: We included 4001 participants. The prevalence of GAD was 8.4% (95% confidence interval 7.6-9.4%) and was significantly associated with self-reported poor health status and presenting depressive symptoms (p < 0.01). GAD-2 sensitivity was 63.9%, and its specificity was 97.4%.Limitations: Because of the cross-sectional design of the study, the results are prone to reverse causality and recall bias. The surveyed people were not questioned about their medical diagnosis of anxiety, access to mental health services, or alcohol, tobacco or other drug use. The screening tools were not validated in the Brazilian or Amazon population.Conclusion: About eight in 100 adults living in Manaus presented GAD, and it is more prevalent among people with a poorer health status and depression. Because of its low sensitivity, GAD-2 is not useful as a screening tool. [ABSTRACT FROM AUTHOR] - Abstract: Copyright of Journal of Affective Disorders is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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