Trends in incidence and treatment for ductal carcinoma in situ in Hispanic, American Indian, and non-Hispanic white women in New Mexico, 1973-1994.

BACKGROUND: Incidence rates of ductal carcinoma in situ (DCIS) breast carcinoma and the use of breast-conserving surgery (BCS) for its treatment show substantial geographic and ethnic variations nationwide. To the authors' knowledge, few studies have investigated incidence rates and treatment patterns in Hispanics and American Indians. METHODS: The authors used data from the population-based New Mexico Tumor Registry to describe trends in DCIS incidence rates between 1973-1994 and investigate patient and physician characteristics related to BCS in a multiethnic population between 1985-1994. Multiple logistic regression was used to evaluate patient and physician factors related to receiving BCS. RESULTS: Incidence rates for DCIS in Hispanics were approximately 50% lower compared with non-Hispanic whites. American Indians had the lowest incidence rate. Beginning in 1985, incidence rates for Hispanics and non-Hispanic whites showed a 21% annual increase. Between 1990-1994, incidence rates in American Indians increased more than twofold. BCS increased 5.8% per year between 1985-1994, with 50% of Hispanic and non-Hispanic white patients treated with BCS in 1994. The strongest factor associated with receiving BCS was geographic location of treatment (P < 0.001). The odds of receiving BCS were 5.8 times higher in the northern third of the state compared with the southern third. No significant variation in BCS was found by ethnicity, rural/urban residency, socioeconomic status, or physician characteristics. CONCLUSIONS: Incidence rates for DCIS increased substantially in all three ethnic groups. The use of BCS was associated most strongly with the location of treatment, most likely reflecting differences in physician practices and treatment recommendations. Further research is needed to investigate the increasing incidence rates of DCIS and the determinants of BCS for the treatment of DCIS.

Estimating cervical cancer incidence in the Hispanic population of Connecticut by use of surnames.

BACKGROUND: The problem of estimating cancer incidence in the growing population of Hispanic women in the Northeastern United States has received little attention. METHODS: Age-specific incidence rates (1980-1988) for invasive and in situ cervical cancer for Hispanic women were estimated by matching individual surnames in the population-based Connecticut Tumor Registry with the 1980 census list of Spanish surnames. Maiden names, obtained from death records of women previously receiving diagnoses of invasive cervical cancer, also were matched with the Spanish-surname list. RESULTS: Estimated age-specific invasive cervical cancer rates for Hispanic women, based on matching individual surnames in the registry with the Spanish-surname list, were higher than rates for all white women in all age groups and at least as high as those for all black women in most age groups. Comparison of maiden names with individual surnames for deceased women, however, suggested that use of individual surnames resulted in some misclassification of Hispanic ethnicity. CONCLUSIONS: The findings indicated that the estimation of cancer rates for Hispanic women in Connecticut could be improved by obtaining maiden names of all women receiving cancer diagnoses.

Cervix and breast cancer incidence in immigrant Caribbean women.

Cervix and breast cancer incidence in 1978-82 was computed for immigrant and United States-born Black women in Brooklyn, New York. Compared to the national SEER (Surveillance, Epidemiology and End Results) rates, US-born and Haitian women had high rates of invasive cervical cancer, while English-speaking Caribbean immigrants had an average rate. However, while US-born women had an average rate of carcinoma in situ of the cervix, both immigrant groups had low rates. Both immigrant groups had low rates of breast cancer, whereas US-born Black women had an average rate.

Cervix and breast cancer incidence in immigrant Caribbean women

Cervix and breast cancer incidence in 1978-82 was computed for immigrant and United States-born Black women in Brooklyn, New York. Compared to the national SEER (Surveillance, Epidemiology and Enf Results) rates, US-born and Haitian women had high rates of invasive cervical cancer, while English-speaking Caribbean immigrants had an average rate. However, while US-born women had an average rate of carcinoma in situ of the cervix, both immigrant groups had low rates. Both immigrant groups had low rates of breast cancer, whereas US-born Black women had an average rate. (AU)