[Problems of codification of cause of death: comparison of the mortality data of the ISTAT and the Regional Mortality Registry of Tuscany].
A two-part study was undertaken to assess the comparability of the coding of underlying cause of death between ISTAT (Central Statistics Office providing "national" mortality statistics) and RMR (Mortality Registry of Tuscany Region providing "local" mortality statistics). In Part I was compared mortality data of the Province of Florence (years 1985-1986) from the files of ISTAT with those of RMR. The source of the cause of death is the same for both systems (ISTAT certificate), but the data collection and coding of RMR are different from those of ISTAT. In Part II was compared a set of 219 Tuscany death certificates (year 1988) coded by ISTAT and RMR. The results showed an high degree of completeness of RMR (only--0.65% vs. ISTAT) and a satisfactory level of correspondence in the number of deaths for circulatory diseases, for neoplasms and for cancers of most important sites (lung, stomach, intestine, pancreas, breast). Discrepancies were found for some other diseases; for some of these causes of death, also age-adjusted mortality rates showed discrepancies (for example ischaemic heart disease). The cause of these differences have been analyzed.
Barchielli
A
A
U.O. Epidemiologia, CSPO-USL 10/E, Firenze.
Capocaccia
R
R
Feola
G
G
Geddes
M
M
Giovannetti
L
L
Cellerini
C
C
D000293:Adolescent; D000328:Adult; D000368:Aged; D002423:Cause of Death; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007558:Italy; D008297:Male; D008875:Middle Aged; D009026:Mortality; D012042:Registries
Problemi di codifica della causa di morte: confronto tra i dati di mortalità dell'ISTAT e del Registro di Mortalità Regionale della Toscana.