HSH744 - Epidemiology - Disease Frequency Combines Prevalence - Nursing Assignment Help

Assignment Task

Questions

1. What measure of disease frequency combines prevalence (all who had the disease at the start of the period) and incidence (all the new cases of disease during a specified period)?
a) Incidence proportion
b) Incidence rate
c) Person-years
d) Period prevalence
e) Cumulative incidence
 

2. The relationship between incidence rate and prevalence is affected by 
a) Period prevalence.
b) The duration of disease
c) Selection bias
d) Incidence proportion
e) How quickly new cases are occurring over time
 

3. At an initial examination in Yamba, New South Wales, migraine headache was found in 5 of 1000 men aged 30-35 years and in 10 of 1000 women aged 30-35 years. The inference that women have a two times greater risk of developing migraine headache than do men in this age group is 
a) Correct
b) Incorrect, because a ratio has been used to compare male and female rates
c) Incorrect, because of failure to recognise the effect of age in the two groups
d) Incorrect, because no data for a comparison or control group are given
e) Incorrect, because of failure to distinguish between incidence and prevalence
 

4. Life expectancy
a) Is the number of years a person is expected live after becoming ill
b) Is determined from a life table
c) Is the same as Years of Life Lost
d) None of the above
e) All of the above

5. Risperidone is used as an antipsychotic medicine, but it is suspected of causing falls in the elderly due to confusion. Assume these were the data from a small case-control study assessing the association between Risperidone use and falls:

Risperidone use?    Cases Controls
Yes (Exposed)            32      18
No (unexposed)         17      37
5a. The Odds Ratio for the association between Risperidone use and falls is 
a) 0.4
b) 5.0
c) 3.9
d) 1.0
e) 3.6

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