# HSC 305 Week 2 Homework

W​‌‍‍‍‌‍‍‌‌‌‍‌‍‍‌‌‍‌‍‍​ork on the following problem Set on Rates, Incidence, Prevalence, and Mortality. Be sure to show your work. 1. A prevalence survey conducted from January 1 through December 31, 2012, identified 1,000 cases of schizophrenia in a city of 2 million persons. The incidence rate of schizophrenia in this population is 5/100,000 persons each year. What percent of the 1,000 cases were newly diagnosed in 2012? Questions 2 and 3 use the information below: Population of the city of Atlantis on March 30, 2012 = 183,000 No. of new active cases of TB occurring between January 1 and June 30, 2012 = 26 No. of active TB cases according to the city register on June 30, 2012 = 264 2. The incidence rate of active cases of TB for the 6-month period was: a. 7 per 100,000 population b. 14 per 100,000 population c. 26 per 100,000 population d. 28 per 100,000 population e. 130 per 100,000 population 3. The prevalence rate of active TB as of June 30, 2012, was: a. 14 per 100,000 population b. 130 per 100,000 population c. 144 per 100,000 population d. 264 per 100,000 population e. None of the above 4. In a survey of 1,150 women who gave birth in Maine in 2000, a total of 468 reported taking a multivitamin at least 4 times a week during the month before becoming pregnant. Calculate the prevalence of frequent multivitamin use in this group. 5. In 2001, a total of 15,555 homicide deaths occurred among males and 4,753 homicide deat​‌‍‍‍‌‍‍‌‌‌‍‌‍‍‌‌‍‌‍‍​hs occurred among females. The estimated 2001 midyear populations for males and females were 139,813,000 and 144,984,000, respectively. Calculate the homicide-related death rates for males and for females. 6. Lung cancer is the leading cause of cancer death for both men and women in the United States. More people die of lung cancer than of colon, breast, and prostate cancers combined. Lung cancer is fairly rare in people under the age of 40. The average age of people found to have lung cancer is 60. In 2004, there will be about 173,770 new cases of lung cancer in the United States. About 160,440 people will die of this disease. The population of the United States in 2004 is 292,287,454. a. Calculate the annual incidence rate of lung cancer in the US in 2004. b. Calculate the mortality rate of lung cancer in the US in 2004. 7. If a measurement of cancer is taken in a population of 40,000, people and 1,200 were recently diagnosed with cancer and 3,500 are living with cancer. a. What is the prevalence of cancer among this population? 8. If there are 25 lung cancer deaths in one year in a population of 30,000 a. What is the mortality rate for that population? 9. If, over the course of one year, five women are diagnosed with breast cancer, out of a total female study population of 200 (who do not have breast cancer at the beginning of the study period), a. What is the incidence of breast cancer in this population​‌‍‍‍‌‍‍‌‌‌‍‌‍‍‌‌‍‌‍‍​?
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