Which of the following statements regarding disease measures is not true? A. Incidence density is a...
Which of the following statements regarding disease measures is not true?
- A. Incidence density is a proportion, not a rate
- B. Prevalence is a proportion
- C. Prevalence equals duration times incidence
- D. Cumulative incidence is a proportion, not a rate
Homework Answers
A. Incidence density is a proportion not rate is not true as at a particular time total number of people having disease and rate of disease are related
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Which of the following statements regarding disease measures is
not true?
A. Incidence density is a...
Disease occurrence can be measured as prevalence or incidence. Which measure is better suited for the...
Disease occurrence can be measured as prevalence or incidence. Which measure is better suited for the evaluation of preventive programs? A) cumulative incidence B) prevalence C) A and C D) incidence rate E) A and B
Explain the following measures of incidence and compare their applications: incidence rate, cumulative incidence rate, incidence...
Explain the following measures of incidence and compare their applications: incidence rate, cumulative incidence rate, incidence density, and attack rate.
9. The following table describes trends in prevalence and incidence of chronic invariably fatal disease from...
9. The following table describes trends in prevalence and incidence of chronic invariably fatal disease from 2093 to 2013, Which of the following describes the above trends? a. The case fatality rate from Disease Z is increasing b. The duration of Disease Z is becoming shorter c. The duration of Disease Z is becoming longer d. Both A and B may be correct e. None of the above Prevalence and Incidence of Rates of Disease Z Among U.S. Adults 25-44...
Indicate whether the following is an incidence proportion, incidence rate, prevalence. (1/2 point each) Incidence proportion/...
Indicate whether the following is an incidence proportion,
incidence rate, prevalence. (1/2 point each)
Incidence proportion/ Cumulative incidence
Incidence rate / incidence density
Prevalence
7 number of women in town of Framingham who reported having heart disease in recent health survey estimated number of women residents of Framingham during same period L number of women in Framingham Study who have died through last year from heart disease number of person-years contributed through last year by women initially enrolled in Framingham...
Prevalence-incidence bias occurs: a The exposure is associated with a decrease in both the incidence and...
Prevalence-incidence bias occurs: a The exposure is associated with a decrease in both the incidence and prevalence of disease b Most commonly in cross-sectional studies c The outcome has an influence on the duration of disease d The disease has long duration （this is wrong， dont choose it）
One of the following is an example of a relative measure of disease frequency in epidemiological...
One of the following is an example of a relative measure of disease frequency in epidemiological studies: A. Cumulative incidence B. Incidence rate ratio C. Prevalence difference D. Population attributable risk
Determine whether each of the following statements regarding the correlation coefficient is true or false. The...
Determine whether each of the following statements regarding the correlation coefficient is true or false. The correlation coefficient equals the proportion of times that two variables lie on a straight line. The correlation coefficient will be +1.0 if all the data points lie on a perfectly horizontal straight line. The correlation coefficient measures the strength of any relationship that may be present between two variables. The correlation coefficient must always lie between –1.0 and +1.0.
4) Which of the following statements regarding the correlation coefficient is not true?
Which of the following statements regarding the correlation coefficient is not true? A) The correlation coefficient has values that range from-1.0 to 1.0 inclusive. B) The correlation coefficient measures the strength of the linear relationship between two numerical variables C) A value of 0.00 indicates that two variables are perfectly linearly correlated D) All of these are true statements
5. Different measures of disease are useful to evaluate and assess public health programs and needs in different situati...
5. Different measures of disease are useful to evaluate and assess public health programs and needs in different situations. For each of the following items, (a) state which measure would best support your goal and (b) explain why you chose that measure. Measures of disease: I = incidence rate P = prevalence proportion C = case fatality proportion M = mortality rate A = absolute number of cases (counts) a) To demonstrate that railroad crossings need to be safer to...
1. Disease X has a steady incidence rate over five years but all of a sudden...
1. Disease X has a steady incidence rate over five years but all of a sudden has a sharp decrease in mortality rate. What would be the impact on the prevalence rate? A. Increase B. Decrease C. Stay the same 2. A public health researcher is interested in the number of new strep throat cases diagnosed in Lexington in the last three months. Which of the following terms best describes the number she will report? A. Population at Risk B....
9. The following table describes trends in prevalence and incidence of chronic invariably fatal disease from 2093 to 2013, Which of the following describes the above trends? a. The case fatality rate from Disease Z is increasing b. The duration of Disease Z is becoming shorter c. The duration of Disease Z is becoming longer d. Both A and B may be correct e. None of the above Prevalence and Incidence of Rates of Disease Z Among U.S. Adults 25-44...
Indicate whether the following is an incidence proportion,
incidence rate, prevalence. (1/2 point each)
Incidence proportion/ Cumulative incidence
Incidence rate / incidence density
Prevalence
7 number of women in town of Framingham who reported having heart disease in recent health survey estimated number of women residents of Framingham during same period L number of women in Framingham Study who have died through last year from heart disease number of person-years contributed through last year by women initially enrolled in Framingham...
1. Disease X has a steady incidence rate over five years but all of a sudden has a sharp decrease in mortality rate. What would be the impact on the prevalence rate? A. Increase B. Decrease C. Stay the same 2. A public health researcher is interested in the number of new strep throat cases diagnosed in Lexington in the last three months. Which of the following terms best describes the number she will report? A. Population at Risk B....
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