Depression with onset in is most similar to adult forms of the disorder.

Depression with onset in preadolescence

Explanation:

Depression with onset in preadolescence is commonly called a teenage depression. If we see medically the adolescence is not different from adult depression. Only the symptoms can be different in both ages just because of their environmental changes. The symptoms could be included as  

In this category of depression, the adolescent will suffer from severe anxiety, stress, and depression that disturb their daily routine life such as work-life, school life, family life, life with friends, etc.  

you answered your own : -/

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