Cancer incidence in a cohort of Swedish chimney sweeps, 1958-2006.

Objectives: We examined cancer incidence in an expanded cohort of Swedish chimney sweeps.

Methods: We added male chimney sweep trade union members (1981-2006) to an earlier cohort (employed 1918-1980) and linked them to nationwide registers of cancer, causes of deaths, and total population. The total cohort (n = 6320) was followed from 1958 through 2006.