Table 2.

Utilization Rates for Transitioning vs. Non-Transitioning Patients

		Rate per 100 patients per 4-month period
Encounter type		Pre	Post	p value pre-post difference*	Δ-in-Δ’s between transitioning and non-transitioning†	p value Δ-in-Δ‡
Clinic visits	Transitioning	129	102	<0.001	2	0.12
	Non-transitioning	119	94	<0.001
ED Visits	Transitioning	29	26	0.14	0	0.49
	Non-transitioning	28	25	0.05
Hospitalizations	Transitioning	14	13	0.28	−2	0.23
	Non-transitioning	15	12	0.04
ACSC hospitalizations	Transitioning	4	3	0.05	1	0.19
	Non-transitioning	3	3	0.90

*p value is difference between pre and post rates assessed by negative binomial regression

†Δ-in-Δ is difference-in-differences

‡p value of transitioning based on negative binomial regression modeling, adjusted for the baseline rate and clustering by patient