Table 3

Model-Predicted Depression Care Process and Outcome Measures, Adjusted for Secular Trend and Weighted by Survey Response and Treatment Selection Likelihoods

Treatment Model	No.	Care Process 6 mo	Response 6 mo (%)	Remission 6 mo (%)	PHQ-9
Treatment Model	No.	Care Process 6 mo	Response 6 mo (%)	Remission 6 mo (%)	Baseline	6 mo
Usual care before	466
Mean		6.5^a	46.1	35.8	12.2^b	7.8^c
SE		0.2	2.7	2.6	0.2	0.3
Cohen’s f²,^d		0.088
Usual care after	559
Mean		6.4^a	46.3	35.0	12.7	7.7^c
SE		0.2	2.7	2.6	0.2	0.3
Cohen’s f²,^d		0.127
DIAMOND care after	245
Mean		10.9	46.7	36.4	13.2	8.0^c
SE		0.3	4.4	4.2	0.3	0.4
Usual care	308
Mean		6.7^a	46.4	33.9	12.3^e	7.8^c
SE		0.3	3.1	3.0	0.2	0.4
Cohen’s f²,^d		0.058
P value^f		<.001	.99	.94	<.06	.92

DIAMOND = Depression Improvement Across Minnesota–Offering a New Direction; PHQ-9 = 9-item Patient Health Questionnaire depression scale; SE = standard error.
↵a P <.001 relative to DIAMOND care after treatment group.
↵b P <.01.
↵c P <.001 change from baseline to 6 months.
↵d Cohen’s f² for comparison group relative to DIAMOND care after.
↵e P <.05.
↵f P values for treatment group effect at denoted measurement point.