[Evaluation of thyroid cancer morbidity in Warsaw in 1987-1997].

The crude and standardized thyroid cancer incidence rates calculated for the period 1987-1997 in Poland increased from 0.5 to 0.9 and 0.5 to 0.8 per 100,000 men, and from 1.8 to 3.6 and 1.4 to 2.8 per 100,000 women. The incidence of the cancer in women in Warsaw doubled during the same period. The upward trend only slightly showed up in the male population of Warsaw. Mortality rates caused by the thyroid cancer in both sexes in Warsaw population declined over the years 1963-1997. The 5-year relative survival rates, calculated for the period 1985-1989, were lower in men than in women (respectively 66 and 49%). This fact can be partly explained by more frequent occurrence of anaplastic tumours in men than in women (respectively 14.2 and 7.8%).