Survival of American Indian and Hispanic cancer patients in New Mexico and Arizona, 1969-82.

Survival was examined by ethnic group for 31,465 incident cancer cases diagnosed from 1969 through 1982 in Hispanic and non-Hispanic whites residing in New Mexico and in American Indians residing in New Mexico and Arizona. In comparison with the 1- and 5-year survival rates following the diagnosis of cancer for non-Hispanic whites, those for American Indians were generally poorer and, to a lesser extent, those for Hispanics were also poorer. The American Indian and Hispanic patients tended to have more advanced disease at the time of diagnosis, although this pattern was not consistent across all sites. For many primary cancer sites, American Indian patients were less likely to receive treatment for their cancer than were non-Hispanic whites. Hispanics were also less likely to be treated for cancers of some sites, although the differences were not as large as for American Indians. However, after adjustment for stage and treatment, American Indians demonstrated significantly poorer survival than non-Hispanic whites for cancers of many sites. After adjustment for stage and treatment, survival in Hispanics was generally comparable to that in non-Hispanic whites.