The aim of this article is to review the results of outcome studies of the
treatment of depression in patients with multiple sclerosis (MS) using meta
-analysis. All treatments for depression in MS were found to be significant
ly more effective than no treatment. Patients in control groups that receiv
ed no treatment, as opposed to minimal treatment, tended to become more dep
ressed over time, suggesting that untreated depression worsens without trea
tment. There appears to be no significant difference in efficacy between ps
ychotherapy and antidepressant medication. Psychotherapies that focus an im
proving coping skills are more effective at reducing depression than psycho
therapies that focus on increasing insight. We conclude that patients with
MS should be evaluated routinely for depression. Patients reporting symptom
s of depression should be referred for treatment since active intervention
is effective at reducing depression and untreated symptoms are likely to wo
rsen.