Lungekreft i Norge 1972–1996, forekomst og overlevelse. Kj?nnsulikheter og regionale forskjeller

摘要

SAMMENDRAGMed utgangspunkt i Kreftregisterets database har vi studert forekomst av lungekreft i Norge i perioden1972-96, og spesielt sett p? regionale ulikheter og forskjeller mellom kj?nnene. Vi har ogs? sett p?endringer i overlevelsen av lungekreft i samme periode. Med unntak av i Oslo har insidensraten ?kt ialle regioner for begge kj?nn, men mest i Agderfylkene. Agderfylkene har i siste del av perioden, 1992-96, h?yeste insidensrate for b?de kvinner og menn, henholdsvis 21 og 45 pr. 100 000. Dette erbetydelig h?yere enn insidensraten for hele landet som er henholdsvis 15,3 og 35,5 pr. 100 000. I Oslohar det blant menn v?rt en nedgang i insidens som startet i perioden 1977-81. Lungekreft skyldes i allhovedsak r?yking, og de tallene vi observerer n? avspeiler r?ykevanene i befolkningen flere ti?r tilbake.Vi vet at tobakksforbruket ?kte frem til 1950 for begge kj?nn, for deretter ? avta, men med en ny toppblant kvinner rundt 1970. Den relative overlevelsen har endret seg lite fra 1972-76 til 1992-96, men detg?r noe bedre med pasienter diagnostisert i stadium 1 og 2 i siste del av perioden.Mellings?ter MR, Thoresen S?.?Incidence and survival in lung cancer in Norway 1972-1996: ENGLISH SUMMARYOur task has been the incidence of lung cancer in Norway for the period 1972 to 1996, with the focuson differences both geographically and within the genders. Accordingly, we have studied the survivalrates for lung cancer in general in Norway for the same period. The present study is based on data fromthe Norwegian Cancer Registry, which is nation-wide and population based. There has been an increasein the incidence rate in all geographic regions for both sexes in the period, with the steepest increase inthe Agder counties of Norway. The exception is Oslo county. The Agder counties had the highestincidence rate for both sexes in the last part of the period, 1992–1996, significantly higher than theincidence rates for the country as whole. In Oslo the men’s incidence rate has dropped since the period1977–1981. Lung cancer is mainly due to smoking, and our figures mirror the smoking habitsthroughout several decades in the Norwegian population. We know that the tobacco consumptionincreased for both sexes up to 1950. However, the female smokers faced an actual higher top around1970. The five year overall survival changed slightly from 1972–1976 to 1992–1996, however,showing a minor improvement for patients diagnosed in stage 1 and 2 in the last period.Nor J Epidemiol 1999; 9 (2): 107-111Gender and regional differences.