[Quality monitoring based on data from the Danish National Patient Registry].

The Danish National Patient Registry (DNRP) was established in Denmark in 1976, and since then in accordance with current law, it has been collecting discharge diagnoses, surgical codes and recently also different diagnostic and treatment codes from all Danish hospitals. Besides being an administrative tool and a tool for epidemiological research through recent years, the DNPR has also supported national clinical quality databases. We report the experiences from a national quality control in Danish reproductive gynaecology based on data from the DNPR. We conclude that the NRP is a suitable tool for continuous clinical quality control, and discuss ways of improving the validity of DNPR data.