Cancers of the prostate and breast among Japanese and white immigrants in Los Angeles County

摘要: Using age-adjusted incidence rates and proportional ratios, the risks of prostate cancer breast in three racial/ethnic groups - Spanish-surnamed whites, other whites Japanese were studied Los Angeles County native residents compared with those immigrants representative 'homeland' populations. An algorithm based on social security numbers was developed utilised to estimate age at immigration for non-US-born patients. For cancer, much higher than homelands each group. However, similar US-born patients white populations, regardless immigration. also high homelands. timing US important determining risk. When indicated that migration occurred later life, substantially lower when early, although they still homeland These findings suggest environmental factors early life rather are etiology events can impact likelihood developing clinically detectable cancer.