Table 2.

Visit-level adjusted probability of low or high value service

		Non-Expansion		Expansion
		Pre	Post	Pre	Post
Population		% (95% CI)	% (95% CI)	% (95% CI)	% (95% CI)	P-Value*
Low Value	All Adults	39 (34–44)	45 (39–51)	33 (29–37)	39 (33–46)	0.893
	Medicaid	43 (31–56)	45 (24–66)	43 (35–52)	41 (33–48)	0.724
	Medicare	49 (40–58)	53 (44–63)	53 (44–61)	57 (48–65)	0.973
	Commercial	37 (32–43)	50 (42–58)	29 (25–33)	36 (28–44)	0.521
High Value	All Adults	41 (36–47)	46 (39–52)	43 (38–48)	51 (44–57)	0.526
	Medicaid	47 (33–61)	45 (30–60)	50 (39–62)	51 (39–63)	0.777
	Medicare	44 (35–52)	53 (43–63)	45 (37–54)	53 (43–62)	0.804
	Commercial	40 (34–45)	44 (26–51)	41 (35–47)	51 (43–47)	0.307
	New Medicaid	41 (18–64)	17 (-4–39)	46 (24–69)	65 (50–81)	0.012

*P value for the logistic regression interaction term between expansion status (expansion state/non-expansion state) and time period (pre/post expansion). Adjusted for age, sex, number of chronic conditions, race/ethnicity, metropolitan statistical area