Many mood disorder patients experience seasonal changes in varying degrees. Studies on seasonality have shown that bipolar disorder has a higher prevalence rate in such patients; however, there is limited research on seasonality in early-onset mood disorder patients. This study estimated the prevalence of seasonality in early-onset mood disorder patients, and examined the association between seasonality and mood disorders.

中文翻译：

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双相情感障碍在早发性情绪障碍中季节性情感障碍的患病率最高：前瞻性观察队列研究的结果

许多情绪障碍患者会经历不同程度的季节性变化。季节性研究表明，双相情感障碍在此类患者中的患病率较高；然而，关于早发性情绪障碍患者季节性的研究有限。这项研究估计了早发性情绪障碍患者的季节性流行率，并检查了季节性和情绪障碍之间的关联。