Bipolar disorders: is there an influence of seasonality or photoperiod?
Objective: To increase understanding of the influence of photoperiod variation in patients with bipolar disorders. Methods: We followed a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients. All patients admitted to the Psychiatric Inpatient Unit of San Luigi Gonzaga Hospital in Orbassano (Turin, Italy) between September 1, 2013 and August 31, 2015 were recruited. Sociodemographic and clinical data were collected. Results: Seven hundred and thirty patients were included. The admission rate for bipolar patients was significantly higher during May, June and July, when there was maximum sunlight exposure, although no seasonal pattern was found. Patients with (hypo)manic episodes were admitted more frequently during the spring and during longer photoperiods than those with major depressive episodes. Conclusions: Photoperiod is a key element in bipolar disorder, not only as an environmental factor but also as an important clinical parameter that should be considered during treatment.
Main Authors: | , , |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Associação Brasileira de Psiquiatria
2018
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-44462018000100006 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
oai:scielo:S1516-44462018000100006 |
---|---|
record_format |
ojs |
spelling |
oai:scielo:S1516-444620180001000062018-03-13Bipolar disorders: is there an influence of seasonality or photoperiod?Aguglia,AndreaBorsotti,AntonioMaina,Giuseppe Bipolar disorder seasonality photoperiod sunlight Objective: To increase understanding of the influence of photoperiod variation in patients with bipolar disorders. Methods: We followed a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients. All patients admitted to the Psychiatric Inpatient Unit of San Luigi Gonzaga Hospital in Orbassano (Turin, Italy) between September 1, 2013 and August 31, 2015 were recruited. Sociodemographic and clinical data were collected. Results: Seven hundred and thirty patients were included. The admission rate for bipolar patients was significantly higher during May, June and July, when there was maximum sunlight exposure, although no seasonal pattern was found. Patients with (hypo)manic episodes were admitted more frequently during the spring and during longer photoperiods than those with major depressive episodes. Conclusions: Photoperiod is a key element in bipolar disorder, not only as an environmental factor but also as an important clinical parameter that should be considered during treatment.info:eu-repo/semantics/openAccessAssociação Brasileira de PsiquiatriaBrazilian Journal of Psychiatry v.40 n.1 20182018-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-44462018000100006en10.1590/1516-4446-2016-2144 |
institution |
SCIELO |
collection |
OJS |
country |
Brasil |
countrycode |
BR |
component |
Revista |
access |
En linea |
databasecode |
rev-scielo-br |
tag |
revista |
region |
America del Sur |
libraryname |
SciELO |
language |
English |
format |
Digital |
author |
Aguglia,Andrea Borsotti,Antonio Maina,Giuseppe |
spellingShingle |
Aguglia,Andrea Borsotti,Antonio Maina,Giuseppe Bipolar disorders: is there an influence of seasonality or photoperiod? |
author_facet |
Aguglia,Andrea Borsotti,Antonio Maina,Giuseppe |
author_sort |
Aguglia,Andrea |
title |
Bipolar disorders: is there an influence of seasonality or photoperiod? |
title_short |
Bipolar disorders: is there an influence of seasonality or photoperiod? |
title_full |
Bipolar disorders: is there an influence of seasonality or photoperiod? |
title_fullStr |
Bipolar disorders: is there an influence of seasonality or photoperiod? |
title_full_unstemmed |
Bipolar disorders: is there an influence of seasonality or photoperiod? |
title_sort |
bipolar disorders: is there an influence of seasonality or photoperiod? |
description |
Objective: To increase understanding of the influence of photoperiod variation in patients with bipolar disorders. Methods: We followed a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients. All patients admitted to the Psychiatric Inpatient Unit of San Luigi Gonzaga Hospital in Orbassano (Turin, Italy) between September 1, 2013 and August 31, 2015 were recruited. Sociodemographic and clinical data were collected. Results: Seven hundred and thirty patients were included. The admission rate for bipolar patients was significantly higher during May, June and July, when there was maximum sunlight exposure, although no seasonal pattern was found. Patients with (hypo)manic episodes were admitted more frequently during the spring and during longer photoperiods than those with major depressive episodes. Conclusions: Photoperiod is a key element in bipolar disorder, not only as an environmental factor but also as an important clinical parameter that should be considered during treatment. |
publisher |
Associação Brasileira de Psiquiatria |
publishDate |
2018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-44462018000100006 |
work_keys_str_mv |
AT agugliaandrea bipolardisordersisthereaninfluenceofseasonalityorphotoperiod AT borsottiantonio bipolardisordersisthereaninfluenceofseasonalityorphotoperiod AT mainagiuseppe bipolardisordersisthereaninfluenceofseasonalityorphotoperiod |
_version_ |
1756422795679498240 |