MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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**9.15 HPV infections in women.** Human papillomavirus (HPV) infection is the most common sexually transmitted infection. Certain types of HPV can cause genital warts in both men and women and cervical cancer in women. The U.S. National Health and Nutrition Examination Survey (NHANES) contacted a representative sample of 1921 women between the ages of 14 and 59 years and asked them to provide a self-collected vaginal swab specimen. Of these specimens, 515 tested positive for HPV, indicating a current HPV infection.

a. Give the probability, risk, and odds that a randomly selected American woman between the ages of 14 and 59 years has a current HPV infection.

b. The survey broke down the data by age group:

| Age group (years) | Percent HPV positive |
|-------------------|----------------------|
| 14–19             | 24.5                 |
| 20–24             | 44.8                 |
| 25–29             | 27.4                 |
| 30–39             | 27.5                 |
| 40–49             | 25.2                 |
| 50–59             | 19.6                 |

Give the risk and the odds of being HPV positive for women in each age group. Which age group has the highest risk, and has the highest odds, of testing positive for HPV?
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Transcribed Image Text:**9.15 HPV infections in women.** Human papillomavirus (HPV) infection is the most common sexually transmitted infection. Certain types of HPV can cause genital warts in both men and women and cervical cancer in women. The U.S. National Health and Nutrition Examination Survey (NHANES) contacted a representative sample of 1921 women between the ages of 14 and 59 years and asked them to provide a self-collected vaginal swab specimen. Of these specimens, 515 tested positive for HPV, indicating a current HPV infection. a. Give the probability, risk, and odds that a randomly selected American woman between the ages of 14 and 59 years has a current HPV infection. b. The survey broke down the data by age group: | Age group (years) | Percent HPV positive | |-------------------|----------------------| | 14–19 | 24.5 | | 20–24 | 44.8 | | 25–29 | 27.4 | | 30–39 | 27.5 | | 40–49 | 25.2 | | 50–59 | 19.6 | Give the risk and the odds of being HPV positive for women in each age group. Which age group has the highest risk, and has the highest odds, of testing positive for HPV?
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