Bipolar disorders: is there an influence of seasonality or photoperiod?

被引:24
作者
Aguglia, Andrea [1 ]
Borsotti, Antonio [1 ]
Maina, Giuseppe [1 ]
机构
[1] Univ Torino, Osped San Luigi Gonzaga, Dipartimento Neurosci Rita Levi Montalcini, Turin, Italy
关键词
Bipolar disorder; seasonality; photoperiod; sunlight; AGE-OF-ONSET; INVOLUNTARY ADMISSION; SUICIDE ATTEMPTS; MANIA; CLIMATE; IMPACT; LIGHT; MOOD; HOSPITALIZATION; SCHIZOPHRENIA;
D O I
10.1590/1516-4446-2016-2144
中图分类号
R749 [精神病学];
学科分类号
100205 ;
摘要
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. Socio-demographic 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.
引用
收藏
页码:6 / 11
页数:6
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