Incidence pattern of thyroid cancer in Norway : influence of birth cohort and time period.
The incidence of thyroid cancer in Norway increased about 2-fold for both sexes during the period 1955 to 1989 (4691 cases).
In the last 5-year period, however, a decline was observed, especially among females.
The ratio between age-adjusted incidence rates in Northern Norway compared with Southern Norway was 1.6 for females and 1.5 for males, and the incidence pattern during the period was similar in the 2 regions.
The analysis of age-cohort-period models showed a strong cohort effect in both sexes.
The reason for this is not clear, although radiation treatment during childhood and dietary habits may possibly be involved.
Mots-clés Pascal : Tumeur maligne, Norvège, Europe, Homme, Thyroide, Incidence, Thyroide pathologie, Endocrinopathie, Epidémiologie
Mots-clés Pascal anglais : Malignant tumor, Norway, Europe, Human, Thyroid gland, Incidence, Thyroid diseases, Endocrinopathy, Epidemiology
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 93-0278939
Code Inist : 002B21C03. Création : 199406.