Table 3.

Percentage change in visits/person/year, post (2010–2014) vs pre (2007–2009). Comparison between employees vs dependents in the intervention group

	Intervention group
	Employees			Dependents			Difference in differences P value
	Pre avg. visit rate (2007–2009)	Post avg. visit rate (2010–2014)	% change post vs pre	Pre avg. visit rate (2007–2009)	Post avg. visit rate (2010–2014)	% change post vs pre
Primary care	1.69	3.33	+96%	2.03	2.33	+15%	<.001
Urgent care	0.36	0.19	−46%	0.54	0.31	−42%	0.673
Emergency dept.	0.17	0.12	−30%	0.18	0.20	+11%	0.017
Inpatient	0.07	0.06	−14%	0.09	0.06	−29%	0.761
Specialty	1.37	1.88	+37%	1.35	1.43	+6%	0.163
Other outpatient	1.40	1.69	+21%	1.28	1.28	+1%	0.151
Total	5.06	7.27	+44%	5.47	5.61	+3%	<.001
Avg. N	435	338		659	515

Source: See online Appendix Exhibit 3A and 3B for detailed trend results and P values for % change of post vs pre intervention results.