Presentation and Clinical Course

Dysthymic patients are less likely to complain of depressed mood than those with major depression. They experience vague feelings of apathy, inadequacy, ruminative 

Depressed mood most of the day at least half of the time for 2 years. 

At least two of the following symptoms are also present during this 2 years  

Having a hard time concentrating or making simple decisions 

Has not been symptom free for 2 months or more dnring this 2 years. 

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McCauley E, Myers K, Mitchell J, et al. Depression in young people initial presentation and clinical course. J Am Acad Child Adolesc Psychiatry 1993 32 714-722. 

To determine what the common patterns of exposure to sheep dips and their components actually were and what constituted the clinical presentation and clinical course. 

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