probability of brest cancer :: essays research papers

Probability of Breast genus Cancer A National Cancer Institute (NCI) report estimates that abtaboo 1 in 8 women in the United States (approximately 13.3 percent) will develop breast crabby person during her lifetime. This estimate is establish on cancer rates from 1997 through 1999, as reported in NCIs Surveillance, Epidemiology, and End Results ( vaticinator) Program effect SEER Cancer Statistics Review 19731999. This publication presents estimates of the risk of developing breast cancer in 10-, 20-, and 30-year intervals. Each season interval is assigned a weight in the calculations based on the proportion of the population living to that time. The 1 in 8 interpret means that, if current rates stay constant, a female born(p) today has a 1 in 8 outlook of be diagnosed with breast cancer sometime during her life. On the other hand, she has a 7 in 8 chance of never developing breast cancer. Because the SEER calculations are weighted they take into account that not all women give-up the ghost to older ages, when breast cancer risk becomes the greatest. A womans chance of being diagnosed with breast cancer is* from age 30 to age 40 . . . . . . . 1 come to the fore of 252 from age 40 to age 50 . . . . . . . 1 come out of the closet of 68 from age 50 to age 60 . . . . . . . 1 out of 35 from age 60 to age 70 . . . . . . . 1 out of 27 Ever . . . . . . . . . . . . . . . . . . . . 1 out of 8 In evaluating cancer risk for a cancer-free individual at a specific capitulum in time, age-specific (conditional) probabilities are more appropriate than lifetime probabilities. For example, at age 50 a cancer-free black woman has about a 2.5-percent chance of developing breast cancer by age 60, and a cancer-free etiolate woman has about a 2.9-percent chance.Among the racial/ethnic groups studied by SEER**, non-Hispanic white, Hawaiian, and black women have the highest levels of breast cancer risk. Other Asian/Pacific Islander groups and Hispanic women have lower le vels of risk. Some of the terminal levels of risk occur among Korean and Vietnamese women.