First M B, Donovan S, Frances A
Columbia University, New York, New York, USA.
Psychiatr Clin North Am. 1996 Mar;19(1):29-39. doi: 10.1016/s0193-953x(05)70271-9.
In attempting to assess the complex relationship of chronic depression with other conditions to which it may be a predisposition, an accompaniment, or a consequence of, a few concluding caveats may be useful. It must be recognized that chronic depression has a wide variety of different presentations and causes. Current definitions of major depressive disorder and dysthymic disorder may create a misleading distinction of what may be two aspects of the overall course of a depressive disorder. Furthermore, much of what is considered to be comorbidity of other disorders with chronic depression actually may be a complex syndrome with a common pathogenesis.
在试图评估慢性抑郁症与其他可能是其易患因素、伴随情况或后果的疾病之间的复杂关系时，一些最后的注意事项可能会有所帮助。必须认识到，慢性抑郁症有各种各样不同的表现形式和病因。目前对重度抑郁症和恶劣心境障碍的定义可能会对抑郁症整体病程中可能的两个方面造成误导性区分。此外，许多被认为是其他疾病与慢性抑郁症共病的情况，实际上可能是一种具有共同发病机制的复杂综合征。
