Coefficient	Standard Error	95% CI		P Value
Total charges
DCCM in the post-index period (interaction term)			-0.423	0.176	-0.768	-0.079	0.016
DCCM group assignment (reference comparison)			0.803	0.138	0.533	1.073	< 0.001
Post-index period (reference pre-index period)			0.441	0.116	0.214	0.668	< 0.001
Baseline HbA1c			-0.107	0.025	-0.156	-0.059	< 0.001
Age			0.009	0.003	0.002	0.016	0.012
Pre-index diabetes medications
Metformin			0.161	0.135	-0.103	0.424	0.233
Insulin use			0.304	0.112	0.084	0.523	0.007
Pre-index diabetes medications by number of classes (reference 2-3)
0-1			-0.222	0.128	-0.472	0.029	0.082
4+			-0.118	0.137	-0.386	0.151	0.390
Comorbidities
Retinopathy			0.521	0.184	0.160	0.883	0.005
Chronic kidney disease			0.541	0.135	0.277	0.805	< 0.001
Black race (reference white)			-0.071	0.339	-0.737	0.594	0.834
Male (reference female)			-0.273	0.088	-0.446	-0.100	0.002
Constant			7.100	0.378	6.359	7.841	< 0.001
Inpatient charges
DCCM in the post-index period (interaction term)			-0.142	0.237	-0.608	0.324	0.550
DCCM group assignment (reference comparison)			0.436	0.186	0.071	0.801	0.019
Post-index period (reference pre-index period)			0.061	0.157	-0.246	0.368	0.697
Baseline HbA1c			0.022	0.033	-0.044	0.087	0.511
Age			0.001	0.005	-0.008	0.010	0.862
Pre-index diabetes medications
Metformin			0.082	0.182	-0.275	0.438	0.653
Insulin use			0.204	0.151	-0.093	0.500	0.178
Pre-index diabetes medications by number of classes (reference 2-3)
0-1			0.163	0.172	-0.175	0.501	0.345
4+			0.238	0.185	-0.125	0.600	0.198
Comorbidities
Retinopathy			0.196	0.249	-0.292	0.683	0.432
Chronic kidney disease			0.537	0.182	0.181	0.894	0.003
Black race (reference white)			-0.728	0.458	-1.627	0.171	0.113
Male (reference female)			0.109	0.119	-0.125	0.342	0.363
Constant			-0.268	0.510	-1.269	0.733	0.599
Outpatient charges
DCCM in the post-index period (interaction term)			-0.419	0.167	-0.747	-0.092	0.012
DCCM group assignment (reference comparison)			0.750	0.131	0.493	1.007	< 0.001
Post-index period (reference pre-index period)			0.474	0.110	0.258	0.690	< 0.001
Baseline HbA1c			-0.115	0.023	-0.161	-0.069	< 0.001
Age			0.008	0.003	0.002	0.015	0.013
Pre-index diabetes medications
Metformin			0.161	0.128	-0.089	0.412	0.207
Insulin use			0.253	0.106	0.045	0.461	0.017
Pre-index diabetes medications by number of classes (reference 2-3)
0-1			-0.251	0.121	-0.489	-0.014	0.038
4+			-0.120	0.130	-0.375	0.135	0.355
Comorbidities
Retinopathy			0.561	0.175	0.218	0.904	0.001
Chronic kidney disease			0.493	0.128	0.242	0.743	< 0.001
Black race (reference white)			0.051	0.322	-0.581	0.683	0.875
Male (reference female)			-0.294	0.084	-0.459	-0.130	< 0.001
Constant			7.171	0.359	6.468	7.875	< 0.001

CI = confidence interval; DCCM = diabetes collaborative care management; HbA1c = hemoglobin A1c.