Biology

Biology, 22.07.2019 00:00, xojade

The higher risk for breast cancer in obese women after menopause is thought to result mainly from chronic exposure of

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Mathematics, 22.06.2019 19:20, lilpeepxliltracy

Given the following statistics for women over the age of 50 entering our medical clinic: 1% actually have breast cancer 90% of the women who have breast cancer are going to get a positive test result (affirming that they have the disease) 8% of those that actually don’t have the disease are going to be told that they do have breast cancer (a “false positive”) what’s the actual probability, if a woman gets a positive test result, that she actually does have breast cancer?

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Health, 05.10.2019 18:00, jlopez113

(4.26) some studies have suggested that a nightly glass of wine may not only take the edge off a day but also improve health. is wine good for your health? a study of nearly 1.3 million middle- aged british women examined wine consumption and the risk of breast cancer. the researchers were interested in how risk changed as wine consumption increased. risk is based on breast cancer rates in drinkers relative to breast cancer rates in nondrinkers in the study, with higher values indicating greater risk. in particular, a value greater than 1 indicates a greater breast cancer rate than that of nondrinkers. wine intake is the mean wine intake, in grams per day, of all women in the study who drank the same amount of wine per week. here are the data ( for drinkers only): wine intakex( grams per day) 3 9.5 15 26 relative risky 1 .00 1.08 1.13 1.23 find the correlation r (â± 0.001) between wine intake and relative risk: r= do the data show that women who consume more wine tend to have higher relative risks of breast cancer? yes no

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Mathematics, 23.10.2019 20:00, johnmarston60

Use the following information to answer questions 4-8. suppose that 50,000 women who have never had a breast cancer diagnosis are available and willing to participate in a new screening program of computerized digital mammography. 1132 women had a positive screening test. all of these positive women had a breast biopsy and 136 were diagnosed with breast cancer. of the 48,868 who screened "negative" on the test, 24 were in fact in the detectable pre-clinical phase. this was determined by following these women and observing that all 24 were diagnosed with breast cancer within one year of the screening test. a colleague in another city reports that the same screening test (with the same sensitivity and specificity) is achieving a predictive value positive of only 6%. what is the explanation for this? a. the colleague is screening a higher risk population b. the colleague is screening a lower risk population c. the colleague is screening a larger population

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