Carcinoma of the cervix in Southwestern American indians: results of a cytologic detection program.
Age-specific detection rates for newly diagnosed in situ and invasive uterine cervical carcinoma were determined in a nine-year cytologic cancer detection program during which 34,700 Southwestern American Indian women and 46,200 medically indigent non-Indian women were screening for cervical cancer. For patients less than 35 years of age, cervical carcino a was found more frequently among Indians and Spanish-American Caucasians than among other Caucasian women. At ages 60 and older, the Indian cervical cancer rate was much higher than that of non-Indians. The detection rate for invasive cervical carcinoma among Indian patients is inversely related to the proportion screened at 30 years of age or older. Although at least 60% of Indian women 20 years old, and older, in the geographic area served by the detection program were screened for cervical cancer during the nine-year period, only 27% of those 50 years or older were screened. The age-related variation in screening percentage, in conjunction with the disproportionately large numbers of younger low-risk women, serves to explain the finding of significant invasive cervical carcinoma in an extensively screened population.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001130:Arizona; D002278:Carcinoma in Situ / Q000453:epidemiology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology; D005006:Ethnicity; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D007198:Indians, North American; D008403:Mass Screening; D008875:Middle Aged; D009516:New Mexico; D011336:Probability; D044469:Racial Groups; D012042:Registries; D002583:Uterine Cervical Neoplasms / Q000453:epidemiology*; D014626:Vaginal Smears