The current statistic of decalcification diseases has been conducted by PZH since 1996. Today it is the only source of epidemiology. However, the statistics are based on the report of a case of diagnosing a decalcified disease. Unfortunately, the number of cases reported in relation to unreported cases is a great unknown. PZH does not have at least the number of tests for decalcification diseases performed both within the National Health Fund and outside the National Health Fund - commercial tests (with and without referral) performed by patients. It is estimated that there are thousands of such tests.
The statistical challenge in decalcified diseases consists in the optimization of statistics, using a modern, complementary approach to the criteria of its collection and information technologies.