Austrian Hemophilia Registry: design, development and set of variables.

Patient registries are databases essential for identifying and tracking individuals with a particular disease and for collecting epidemiological information. The data obtained are necessary for quality control and quality assurance in treatment and for studying the impact of new developments on prevention, diagnosis and treatment. The Austrian Hemophilia Registry is a joint initiative between Austrian hemophilia treaters, represented by the Austrian Hemophilia Society's scientific advisory board, and the Austrian Hemophilia Society (OHG). The registry's main objective is to record information on patients with hemophilia, such as severity of disease, types of treatment and general health status. The registry also aims to improve the planning of supply of factor concentrates and to provide an instrument for early detection of side effects, such as an increase in inhibitor development or certain infections. The registry consists of three parts: the first contains basic information on quality control, the second contains extended data for quality control collected annually, and the third, "study part", covers scientific data and is also updated annually. For the latter, written informed consent of each patient is a prerequisite. Data are stored centrally on a server of an independent, public institution (University for Health Sciences, Medical Informatics and Technology: UMIT). The server is situated in a data-processing center with sophisticated security measures including physical control of access. Participating institutions comprise the main hemophilia care centers in Austria. Statistical analysis is carried out on anonymized data only. The project was financed by a public-private partnership with financial resources provided by the Austrian Ministry of Health (BMGFJ) and the pharmaceutical industry. The entire project, which is planned to be long term, will be monitored, evaluated and adjusted by the scientific advisory board accordingly.