Epidemiology tools program and selected medical applications.

In epidemiological research the calculation of appropriate measures of disease frequency is the basis for a comparison of populations and, therefore, the identification of disease determinants. Two frequencies being compared can be combined into a single summary parameter that estimates the association between an exposure and a disease. This can be accomplished by calculating either the ratio of the measures of disease frequency for two populations which indicates how much more likely one population is to develop a disease than another, or the difference between the frequencies which indicates how much greater the frequency of a disease is in one population compared with the other.

Computer supported decision making in therapy of arterial hypertension.

Therapy of hypertension is still more or less empirical. Several classes of antihypertensive medications are known, the effect of which is based on different mechanisms. The efficacy of the treatment is not always a reliable indication of the appropriate selection as a good therapeutical response can sometimes be achieved at the expense of humoral simulation.

Evaluation of data in cardiology by new software tools.

We describe an analysis of cardiology data using new software tools. First we use data of 1417 men aged 40 to 50 years living in the center of Prague gathered in the twenty years lasting longitudinal study. We show some results of application of the programs E.