Kreft og dødelighet blant norske feiere: Vurdering av datakvalitet
DOI:
https://doi.org/10.5324/nje.v11i2.556Abstract
ENGLISH SUMMARY
Møller B, Andersen Aa.
Cancer and mortality among Norwegian chimney sweeps.
Nor J Epidemiol
2001; 11 (2): 193-196.
The aim of the study was to investigate cancer incidence and mortality among Norwegian chimney
sweeps. A cohort of 1483 persons was established by collecting information about current and former
chimney sweeps from all the local authorities. Information from housing censuses (HS) in 1960, 1970
and 1980 were used to study the quality of the data. This revealed that the mortality among those chimney
sweeps in HS that are included in our cohort is lower than the mortality among those not reported
to us from the local authorities. Because of this, only a sub-cohort of 287 chimney sweeps from the
largest cities were considered reliable. The uncertainty concerning risks for the different cancer sites in
this group is large, since calculations are based on very few cases. The standardized incidence rate
(SIR) for total cancer is 1.3 (95% CI: 1.0–1.8), and the standardized mortality rate (SMR) for all deaths
is 1.2 (95% CI: 1.0–1.4). We also analyzed the 1292 persons who stated chimney sweep as occupation
in the housing censuses in 1960, 1970 or 1980. SIR and SMR analyses in this group show no increased
risk for any specific cancer sites, nor for any cause specific death.
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