Table 1.

Major- and minor depression in PHQ 9 and DSM

	PHQ 9	DSM IV TR	DSM V
	Major depression syndrome	Major depression	Major depression
Major depression	At least 5 symptoms are answered with more than half of the days or nearly every day a, at least 2 weeks present, 1 core symptomb	At least 5 symptoms during the same 2-week period, at least 1 core symptomb	At least 5 symptoms during the same 2-week period, at least 1 core symptomb
Minor depression	Other depressive syndrome	Depressive disorder not otherwise specified	Depressive episode with insufficient symptoms
	2–4 symptoms are answered with more than half of the days or nearly every day a, at least 2 weeks present, 1 core symptomb	Any depressive disorder that does not meet the criteria for a specific disorder	Depressed affect and at least one other symptom, at least 2 weeks present
Non depression	0–1 symptom is answered with more than half of the days or nearly every day a	Non depressive	Non depressive

^asuicidality is also taken into consideration if answered with several days

^bdepressed mood and loss of interest or pleasure