Early age at onset, predominance in women, outpatient status, mild intensity, rarity of attempted suicide, nonbipolarity, nonendogenicity, and minimal psychomotor change are
[ncbi.nlm.nih.gov]
Hardly "atypical" in contemporary contexts, atypical depression also is common in dysthymic bipolar II disorders and is notable for its early age at onset, more chronic course
[ncbi.nlm.nih.gov]