Croatian National Cancer Registry was founded in 1959.
Originally, it only collected data relating to cencer deaths.
Since 1962, it has been processing data on cancer incidence.
Electronic data processing was introduced in 1968.
data sources for cancer registration are hospital discharge
notifications called "Onco type forms" (form JZ-ONK) and
outpatient "Malignant neoplasm notification" (form JZ‑NEO).
Under the Statistical Research Program promulgated by the
Parliament, health institutions and private health
practitioners are required to submit these notifications to
the Croatian National Cancer Registry. The form is completed
on establishing a diagnosis. Copies of the histological/cytological
finding are also submitted. Data source on cancer mortality
is the National Bureau of Statistics and Croatian National
Institute of Public Health mortality database, which is the
only completely electronic data source. The electronic
hospital dischagre data file received from the Statistics
Department, Croatian National Institute of Public Health has
also been used as a supplementary data source.