A recent article on Breast Cancer among L.I. women gives the probability a woman with breast cancer lives near a chemical plant and the probability a woman without breast cancer lives near such a plant. It also states that this translates to a 62% higher risk of cancer for women living near a plant. The number of breast cancer victims is given as 107-112 per 100,000. To simplify the situation say 110 women per 100,000 (= .0011) Long Island woman get breast cancer. What are the actual numbers that the 62% applies to? i.e. If a woman lives near a chemical plant what are her chance of getting breast cancer? ( I get .001678) If a woman does not live near a chemical plant what are her chances? ( .00104) .