Please use this identifier to cite or link to this item:
|Title:||Variability of cancer risk within an area: time to complement the incidence rate|
|Authors:||CROCETTI EMANUELE; GIUSTI FRANCESCO; MARTOS JIMENEZ MARIA DEL CARMEN; RANDI GIORGIA; DYBA TADEUSZ ARTUR; BETTIO MANOLA|
|Citation:||EUROPEAN JOURNAL OF CANCER PREVENTION vol. 26 no. 5 p. 442-446|
|Publisher:||LIPPINCOTT WILLIAMS & WILKINS|
|Type:||Articles in periodicals and books|
|Abstract:||The aim of this study was to show that age-adjusted cancer incidence rates for an area may not be representative of the incidence in subareas. We propose a simple measure to show the amount of geographical variability. European agestandardized incidence rates (ASRs) for ‘all sites excluding nonmelanoma skin cancer’, for men, in 2014, for Nordic countries as a whole, for each country (Denmark, Faroe Islands, Finland, Greenland, Iceland, Sweden and Norway) and for their regions, were retrieved from the Nordcan with corresponding standard errors SEs. We compared the ASR for Nordic countries versus single country and single country versus specific regions. The overlapping of 95% confidence intervals was used for ASRs comparisons. As a measure of variability, we computed the range between the highest and the lowest ASR within an area and the ratio between this range and the ASR of the overall area, r/R=(range/ASR)×100. The 95% confidence interval of the ASR for Nordic countries as a whole did not overlap those of the majority of the single countries; in fact, the r/R – which provides a clue for the amount of underlying geographical variability – was rather large (57.1%). Within countries, the variability was negligible in Iceland (r/R=9.6%), whereas the highest value was found in Sweden (37.1%). The ASR does not provide any information on underlying geographical variability. Therefore, its interpretation could be misleading. When data for subareas are available, the r/R, which is simple to compute and to understand, should be added to the ASR for providing more truthful information.|
|JRC Directorate:||Health, Consumers and Reference Materials|
Files in This Item:
There are no files associated with this item.
Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.