Background: A diagnosis of minor depression was considered for DSM-IV.
Mild depression is thought to be common in primary care settings and
in the community, but studies of the validity of minor depression as a
separate diagnostic category are few. Methods: Minor depression as de
fined by Research Diagnostic Criteria was assessed by psychiatrists us
ing a modified Schedule for Affective Disorders and Schizophrenia-Life
time version in a cohort of 5200 young adults in Israel. Subjects with
year-prevalent minor depression were compared with subjects with majo
r depression or generalized anxiety disorder and with controls on aspe
cts of psychopathologic condition, psychosocial functioning, help-seek
ing behaviors, and demographic correlates. Results: Symptomatically, m
inor depression appeared to be a mild version of major depression. Min
or depression was associated with good teenage and general social func
tioning, but also with absence from work, separation or divorce, recen
t impairment in overall functioning, and help-seeking. Conclusions: Th
e results lend support for including minor depression or expanding sev
erity modifiers in future classifications to better capture the phenom
enon of subthreshold depression.