Differences in the timeliness of diagnosis, breast and cervical cancer, San Francisco 1974-85.

Cancer registry data for San Francisco (1974-85) were used to identify women at greater risk of late diagnoses for breast and cervical cancers by age and ethnicity. For breast cancer, Black women were at greater risk for late diagnoses. For cervical cancer, women of all ethnic groups ages 50-69 years and Japanese and Filipino women were at greater risk for late diagnoses.