Table 4.

Prevalence of severity rates (total N = 3,895).

	N	Avg. PHQ-9 total score	Under 55	55–60	61–65	66–70	71–75	76–80	80 and older
Minimal (0–4)	243	2.03	55	82	50	22	15	6	3
Mild (5–9)	335	7.16	84	123	59	31	15	5	2
Moderate (10–14)	540	12.11	143	219	92	41	16	11	2
Moderately severe (15–19)	905	17.16	267	348	160	69	27	9	4
Severe (20–27)	1,872	23.78	707	716	267	109	27	10	1

Bolded means in the table represent the subgroups with the highest mean score.