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[Use of registries for specific evaluation studies: example of ischemic cardiopathies].

The longitudinal and exhaustive data accumulated in morbidity registers make them high performance tools to develop specific surveys for clinical assessment. Coronary heart disease morbidity registers provide examples of structure able to collect and analyse useful information for decision making in the field of public health and medicine. There are three registers in France. Because of their geographic distribution in areas with contrasting levels of health status (Lille, Strasbourg, Toulouse), comparative data generally is applicable to France in general with regional variety. Data on medical care are already available. The measurement of cardiovascular risk factor levels, a full part of the longitudinal survey, offers the opportunity to develop a competence in the field of population-based study organisation. Several specific clinical assessment studies on medical care distribution, or on the short- or middle-term effect of screening and prevention atherosclerosis centres, should be proposed. Contacts between persons in charge of decision and register co-ordinators are necessary to fit questions to answers. These registers are able to provide high quality information whose conclusions can be generalised. For the last ten years, ischaemic heart disease registers have developed a high quality level in epidemiology and consistent national and international networks that can be considered as convenient structure providing helpful information for decision.