dysthymia

n.

心境恶劣，心情恶劣，精神抑郁（症）；

1. Bipolar disorder, also called manic-depressive illness, is not as common as major depression or dysthymia.
   双相情感障碍，也叫做躁郁症，并不像重度抑郁症或心境恶劣一样普遍。
2. People with dysthymia may also experience one or more episodes of major depression during their lifetimes.
   心境恶劣患者在其一生中，也会经历一次或更多此的重度抑郁。

Is dysthymia a different disorder in the elderly?
The undertreatment of dysthymia
Dysthymia in community and clinical samples of older adults.
Treatment of Dysthymia and Minor Depression in Primary Care: A Randomized Controlled Trial in Older Adults
Proposed endophenotypes of dysthymia: evolutionary, clinical and pharmacogenomic considerations
Treatment of dysthymia and minor depression in primary care: a randomized trial in patients aged 18 to 59 years
Comorbidity of unipolar depression: I. Major depression with dysthymia.
Major depression and dysthymia in children and adolescents: discriminant validity and differential consequences in a community sample.
Syndrome comorbidity in patients with major depression or dysthymia: prevalence and temporal relationships.
A placebo-controlled, randomized clinical trial comparing sertraline and imipramine for the treatment of dysthymia.