Document Detail

Seasonal affective disorder: some epidemiological findings from a tropical climate.
MedLine Citation:
PMID:  8902165     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine whether a predominantly summer-focussed pattern of seasonal affective disorder (SAD) exists in tropical northern Australia. METHOD: A mail survey containing a modified form of the Seasonal Pattern Assessment Questionnaire (SPAQ) was administered to 176 households in the city of Townsville (latitude: 19 degrees south). RESULTS: Using previously reported screening criteria, 9% of respondents reported a degree of summer impairment indicative of SAD, while the incidence rate for winter SAD was 1.7%. This summer-winter ratio is typically reversed in more temperate latitudes. CONCLUSIONS: Excessive heat and humidity were reported to be the two most influential environmental factors affecting mood and behaviour. It is likely that respondents meeting criteria for summer SAD represent the extreme end of a spectrum of summer-related mood and behaviour change that affects many individuals in northern Australia. Strategies for further clinical and epidemiological research on SAD in tropical climates are proposed.
S A Morrissey; P T Raggatt; B James; J Rogers
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Australian and New Zealand journal of psychiatry     Volume:  30     ISSN:  0004-8674     ISO Abbreviation:  Aust N Z J Psychiatry     Publication Date:  1996 Oct 
Date Detail:
Created Date:  1997-02-20     Completed Date:  1997-02-20     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0111052     Medline TA:  Aust N Z J Psychiatry     Country:  AUSTRALIA    
Other Details:
Languages:  eng     Pagination:  579-86     Citation Subset:  IM    
Department of Psychology and Sociology, James Cook University of North Queensland, Cairns, Australia.
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MeSH Terms
Aged, 80 and over
Cross-Sectional Studies
Hot Temperature
Middle Aged
Queensland / epidemiology
Sampling Studies
Seasonal Affective Disorder / diagnosis,  epidemiology*,  psychology
Tropical Climate*

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