Cancer in Russian Inuit.

Using the framework of the Native Cancer Registry, cancer morbidity among Russian Inuit can be obtained from 1960 onwards. Earlier data are available, but have not been verified. Unfortunately, the absence of accurate demographic data for the Native population of about 16 000 people, including the increase from 1 149 to 1 452 Inuit between 1970 and 1989 prevents comparison and analysis of morbidity and mortality data with the non-Inuit population. Nevertheless, the number of cancers has risen in the Native population of Chukotka during the last decade (1979-1988), with a predominance of oesophagus, lung and stomach cancer among the Inuit. In contrast, no cases were observed of the salivary gland, nasopharyngeal and cervical cancers common in other Inuit populations.