Table 3.

Mean standardized difference of 40 selected variables, comparing electronic health records with claims-electronic health records in all years after cohort entry^a

		Year after cohort entry
		1	2	3	4	5	6	7
Proportion of encounters captured by the electronic health records	0 to <10%	0.53	0.55	0.56	0.56	0.56	0.55	0.54
	10 to <20%	0.32	0.29	0.28	0.28	0.28	0.25	0.23
	20 to <30%	0.23	0.21	0.21	0.21	0.19	0.18	0.16
	30 to <40%	0.18	0.16	0.16	0.15	0.15	0.13	0.13
	40 to <50%	0.14	0.13	0.13	0.13	0.11	0.10	0.09
	50 to <60%	0.13	0.11	0.11	0.11	0.10	0.08	0.08
	60 to <70%	0.09	0.08	0.07	0.07	0.07	0.06	0.06
	70 to <80%	0.06	0.06	0.06	0.06	0.06	0.04	0.04
	>=80%	0.04	0.04	0.04	0.04	0.04	0.03	0.03

^aA mean standardized difference <0.1 indicates acceptable discrepancy¹⁷; estimates < 0.1 were marked in boldface.