Objectives: Perinatal mortality rate is important expression of public health care. Estimation of the real effects of medical procedures needs a proficient information flow.
Material and methods: Authors compared data from Polish Official Statistics with data transferred from obstetric departments of regional hospitals in Lublin province.
Results: There were significant divergences concerning neonatal mortality. Hospitals reported 33 deaths less than statistical office. In order to explain the divergence found the new forms for reporting were prepared.
Conclusion: Secondary analysis of the results exerted, that data obtained from Polish Official Statistics were correct.