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

Table 1

The study cohort compared to the population of Austria on the reporting date of January 1, 2007.

Province	Population; 1.1.2007	Population older; than 20 years	Persons in cohort older than 20; years and exact prescription date	% of persons in cohort; compared to population
Lower Austria	1,592,500	1,244,330	518,232	41.65%
Carinthia	559,829	441,755	207,095	46.88%
Salzburg	525,826	407,494	198,689	48.76%
Vienna	1,665,458	1,338,391	89,283	6.67%
Styria	1,203,132	956,725	9,629	1.01%
Upper Austria	1,405,127	1,082,401	7,954	0.73%
Tyrol	697,863	538,733	7,798	1.45%
Burgenland	280,469	225,451	1,863	0.83%
Vorarlberg	364,985	275,846	1,055	0.38%
No province			2,164
Sum	8,295,189	6,511,126	1,043,762	16,03

According to Statistik Austria.