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Statements

Subject Item
n2:RIV%2F00216208%3A11120%2F09%3A43906862%21RIV13-MSM-11120___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Many researchers have analyzed seasonal variation in hospital admissions for bipolar disorder with inconsistent results. We investigated if a seasonal pattern was present in daily self-reported daily mood ratings from patients living in five climate zones in the northern and southern hemispheres. We also investigated the influence of latitude and seasonal climate variables on mood. Method: 360 patients who were receiving treatment as usual recorded mood daily (59,422 total days of data). Both the percentage of days depressed and hypomanic/manic, and the episodes of depression and mania were determined. The observations were provided by patients from different geographic locations in North and South America, Europe and Australia. These data were analyzed for seasonality by climate zone using both a sinusoidal regression and the Gini index. Additionally, the influence of latitude and climate variables on mood was estimated using generalized linear models for each season and month. Results: No seasonality was found in any climate zone by either method. In spite of vastly different weather, neither latitude nor climate variables were associated with mood by season or month. Conclusion: Daily self-reported mood ratings of most patients with bipolar disorder did not show a seasonal pattern. Neither climate nor latitude has a primary influence on the daily mood changes of most patients receiving medication for bipolar disorder. Many researchers have analyzed seasonal variation in hospital admissions for bipolar disorder with inconsistent results. We investigated if a seasonal pattern was present in daily self-reported daily mood ratings from patients living in five climate zones in the northern and southern hemispheres. We also investigated the influence of latitude and seasonal climate variables on mood. Method: 360 patients who were receiving treatment as usual recorded mood daily (59,422 total days of data). Both the percentage of days depressed and hypomanic/manic, and the episodes of depression and mania were determined. The observations were provided by patients from different geographic locations in North and South America, Europe and Australia. These data were analyzed for seasonality by climate zone using both a sinusoidal regression and the Gini index. Additionally, the influence of latitude and climate variables on mood was estimated using generalized linear models for each season and month. Results: No seasonality was found in any climate zone by either method. In spite of vastly different weather, neither latitude nor climate variables were associated with mood by season or month. Conclusion: Daily self-reported mood ratings of most patients with bipolar disorder did not show a seasonal pattern. Neither climate nor latitude has a primary influence on the daily mood changes of most patients receiving medication for bipolar disorder.
dcterms:title
Relationship among latitude, climate, season and self-reported mood in bipolar disorder Relationship among latitude, climate, season and self-reported mood in bipolar disorder
skos:prefLabel
Relationship among latitude, climate, season and self-reported mood in bipolar disorder Relationship among latitude, climate, season and self-reported mood in bipolar disorder
skos:notation
RIV/00216208:11120/09:43906862!RIV13-MSM-11120___
n3:aktivita
n15:N
n3:aktivity
N
n3:cisloPeriodika
1-2
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n5:8421382
n3:druhVysledku
n18:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
338768
n3:idVysledku
RIV/00216208:11120/09:43906862
n3:jazykVysledku
n4:eng
n3:klicovaSlova
Latitude; Climate; Seasonality; Bipolar disorder
n3:klicoveSlovo
n7:Latitude n7:Climate n7:Seasonality n7:Bipolar%20disorder
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[4AE5E48A232D]
n3:nazevZdroje
Journal of Affective Disorders
n3:obor
n6:FL
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
13
n3:rokUplatneniVysledku
n14:2009
n3:svazekPeriodika
116
n3:tvurceVysledku
Alda, Martin
n3:wos
000267247000026
s:issn
0165-0327
s:numberOfPages
6
n8:doi
10.1016/j.jad.2008.11.013
n11:organizacniJednotka
11120