F. Benazzi, CHRONIC DEPRESSION - A CASE SERIES OF 203 OUTPATIENTS TREATED AT A PRIVATE-PRACTICE, Journal of psychiatry & neuroscience, 23(1), 1998, pp. 51-55
Objective: To determine the prevalence of chronic depression among out
patients seen for depression. Design: Case series. Setting: Private pr
actice. Patients: Two hundred and three outpatients with mood disorder
s, excluding patients with comorbid substance abuse disorders and seve
re personality disorders. Outcome measures: Prevalence rate and patien
t variables (diagnosis, age at baseline, age at onset, sex, number of
previous episodes of depression, atypical features, psychiatric comorb
idity, psychosis, duration of illness and baseline severity). Results:
The prevalence of chronic depression was 46.7%, which is higher than
previously reported. The number of depressive episodes was higher, the
presence of psychotic symptoms was more common and the duration of il
lness was longer in patients with chronic depression than in those wit
h nonchronic depression. Conclusions: Chronic depression is more sever
e than nonchronic depression and is a prevalent illness in outpatients
with depression seen in private practice.