ABSTRACT: Rapidly rising breast cancer incidence rates among Asian-American
In recent years, breast cancer incidence rates have fluctuated over relatively
short time spans; examination of these patterns can provide etiologic
clues and direction for prevention programs.
are generally considered to be at lower risk of breast cancer
than other ethnic groups.
However, their rates are typically
based on an aggregation of ethnic Asian populations, which may
obscure important ethnic differences in risk. Detailed analyses
of the trends in ethnic-specific incidence rates will provide
more information than when ethnicities are combined.
County, California, the most populous and probably the most ethnically
diverse county in the United States, has a large multi-ethnic
Asian-American population. Trends in invasive female breast cancer
incidence were examined using data from the Los Angeles Cancer
Surveillance Program, the population-based cancer registry covering
Athough overall breast cancer incidence rates remained
stable in the late 1980s and early 1990s, data for the most recent
5-year period suggest that incidence may again be increasing
for Asian-American and non-Hispanic white women over age 50 (estimated
annual percent change = 6.3%, p < 0.05 and 1.5%, p < 0.05,
respectively), although little change has occurred among black
and Hispanic women.
Invasive breast cancer incidence rates for
Asian-American ethnic groups are heterogeneous and, for most,
are increasing. In Los Angeles County, rates for Japanese-American
women have increased rapidly since 1988 and are now approaching
rates for non-Hispanic white women.
Rates among Filipinas, who
have historically had higher rates than their other Asian-American
counterparts, are not increasing as rapidly as rates for Japanese
women, but remain relatively high. Breast cancer risk among women
of Japanese and Filipino ancestry is twice that of Chinese and
Korean women. Asian women, who commonly have low breast cancer
rates in their native countries, typically experience increasing
breast cancer incidence after immigrating to the United States.
Ethnic-specific incidence rates show that Japanese-Americans,
the first Asian population to immigrate to Los Angeles County
in large numbers and the most acculturated, have experienced
a rapid increase in breast cancer incidence.
rates in Los Angeles County may have already surpassed those
of non-Hispanic whites if recent trends have continued unabated.
[05/31/2002; International Journal of Cancer]
J Cancer, 12/02
5th Asian American Ca Control Academy,
Int'l J Radiation Oncology, Biology
& Physics, 5/05
Pap smear & mammogram testing
examined, Cancer Prevention Journal 2000
This population needs community-based
Younger Age at Diagnosis (Vietnamese-American Women)
LINK to site that includes AAPI
Cancer Survivors Building Project
LINK to group that provides an educational, supportive, & diverse network of resources for Asian Americans
affected by cancer.
J Psycho-Oncology, October 2007
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