Original article

Scand J Work Environ Health 1993;19(2):96-101    pdf


Mortality and cancer incidence in a cohort of rubber workers in Moscow.

by Solionova LG, Smulevich VB

This study evaluated the mortality and cancer incidence of 1178 men and 2492 women who had worked at least 10 years in a large rubber manufacturing facility up to the cohort assembly period between 1 January 1979 and 31 December 1983. The follow-up period was from 1 January 1979 to 31 December 1988. For all causes of death no increase in risk was observed. The male workers had a nonsignificantly increased standardized mortality ratio (SMR) for all cancers [SMR 116, 95% confidence interval (95% CI) 90-151] and a significantly increased SMR for injuries (SMR 174, 95% CI 111-257). For the men the all-cancer standardized incidence ratio (SIR) was 146 (95% CI 119-172), and the SIR for brain cancer was significantly greater than 100 (SIR 500, 95% CI 233-767). Among the female workers only a significant excess risk for laryngeal tumors (SIR 1430, 95% CI 172-5160) was found. Because of the limited amount of data and the many subgroups formed, the occupational genesis of the cancer excess should not be overinterpreted. In addition, there was a possibility of confounding from smoking and other nonoccupational factors.