Table 3.

Care manager contacts and time over 24 months by patient education and race/ethnicity

	Care Manager Contacts with						Care Manager Time (minutes) on
	Patient		PCP		Family Members		Patient Assessment		Meds Management		Care Coordination
	Mean*	IRR (p- value)	Mean*	IRR (p- value)	Mean*	IRR (p- value)	Mean*	IRR (p- value)	Mean*	IRR (p- value)	Mean*	IRR (pvalue)
No college vs. some college
0-4 mo.	12.8	0.9 (0.581)	5.7	0.8 (0.362)	1.2	0.9 (0.827)	133	0.9 (0.307)	75	0.9 (0.430)	61	0.7 (0.203)
4-8 mo.	7.9	1.0 (0.872)	3.0	0.7 (0.276)	0.4	1.0 (0.990)	79	1.0 (0.870)	37	1.1 (0.516)	23	1.7 (0.166)
8-12 mo.	5.6	1.2 (0.295)	1.1	1.5 (0.173)	0.2	1.9 (0.261)	62	1.1 (0.595)	27	1.4 (0.076)	12	1.6 (0.218)
12-18 mo.	5.9	1.2 (0.423)	1.1	1.3 (0.381)	0.6	0.6 (0.352)	62	1.1 (0.474)	24	1.4 (0.142)	15	1.3 (0.532)
18-24 mo.	4.8	0.9 (0.583)	0.8	0.9 (0.841)	0.1	3.2 (0.170)	51	1.2 (0.340)	23	1.0 (0.889)	9	1.4 (0.409)
Minority vs. non-Hispanic white
0-4 mo.	11.7	1.1 (0.204)	5.2	0.9 (0.362)	1.0	1.6 (0.158)	126	1.0 (0.698)	64	1.4 (0.030)	54	0.8 (0.198)
4-8 mo.	8.2	0.8 (0.229)	2.7	0.7 (0.209)	0.4	1.5 (0.340)	88	0.7 (0.076)	41	0.9 (0.685)	45	0.4 (0.019)
8-12 mo.	7.2	0.6 (0.019)	1.7	0.6 (0.144)	0.3	2.4 (0.079)	77	0.5 (0.002)	39	0.5 (0.010)	21	0.4 (0.028)
12-18 mo.	7.1	0.7 (0.171)	1.5	0.6 (0.186)	0.2	3.7 (0.014)	75	0.6 (0.065)	34	0.7 (0.211)	23	0.3 (0.008)
18-24 mo.	4.6	0.9 (0.694)	0.9	0.6 (0.148)	0.1	3.1 (0.034)	66	0.6 (0.167)	24	1.0 (0.900)	16	0.4 (0.032)

^*Mean predicted DCM intensity for the reference patient group, i.e., some college for education comparison, non-Hispanic white for ethnic comparison. IRR=Incident Rate Ratio; IRR measures the relative frequency of contacts/ care manager time between an index group and its reference group.

Results are based on longitudinal negative binomial regressions.

Robust standard errors were based on clustering at the patient level.