Effects of Shared Electronic Health Record Systems on Drug-Drug Interaction and Duplication Warning Detection

Table 4

Prescriptions with minor DDI and duplication warnings without (drugs issued by one HCP) and with e-Medikation (drug issued by different HCPs) per age group.

Age group	Number of prescriptions	Minor DDI warnings						Duplication warnings
		Without e-Medikation		With e-Medikation		Increase		Without e-Medikation		With e-Medikation		Increase
		20–29	893,383	14,963	1.67	18,314	2.05	3,351	22.4	30,062	3.36	39,569	4.43	9,507	31.6
30–39	1,439,362	42,448	2.95	50,788	3.53	8,340	19.7	63,888	4.44	82,875	5.76	18,987	29.7
40–49	2,530,847	143,042	5.65	163,997	6.48	20,955	14.7	133,442	5.27	167,190	6.61	33,748	25.3
50–59	3,961,860	398,569	10.06	446,535	11.27	47,966	12.0	236,724	5.98	284,046	7.17	47,322	20.0
60–69	6,459,356	827,639	12.81	910,074	14.09	82,435	10.0	406,793	6.30	473,916	7.34	67,123	16.5
70–79	6,209,350	900,417	14.50	981,409	15.81	80,992	9.0	412,262	6.64	469,396	7.56	57,134	13.9
80–89	4,651,582	643,191	13.83	696,134	14.97	52,943	8.2	323,523	6.96	363,580	7.82	40,057	12.4
90–99	777,134	88,489	11.39	94,279	12.13	5,790	6.5	53,181	6.84	58,589	7.54	5,408	10.2
Sum, mean	26,922,874	3,058,758	11.36	3,361,530	12.49	330,250	10.8	1,659,875	6.17	1,408,391	6,58	279,286	16.8