do you agree or disagree and why? + source of the information: A prevalence prop
ID: 145131 • Letter: D
Question
do you agree or disagree and why? + source of the information:
A prevalence proportion differs from an incidence rate by specified cases and time period. A prevalence rate focuses on all kinds of existing cases while incidence rate focuses on new cases of disease. Incidence rate is calculated by dividing the number of new cases over a certain period of time by the population number that is at risk at that same time. The prevalence proportion can be calculated by the number of all existing illness and deaths at a specific time divided by the number of people in that population. There is also point prevalence, which the prevalence is measured at a certain point and period prevalence which measures prevalence over a period of time. To estimate the future risk of breast cancer among women aged 50-65, Incidence rate would be a better indicator since it focuses on the new cases and divides that number by the average population that is at risk at that certain time. It would be better at indicating the risk for women of that specific age group. When estimating the number of surgeons to treat breast cancer a prevalence proportion would be a better indicator. Because a prevalence proportion focuses on all cases and not just new cases, it can measure the ratio of how many surgeons will be needed to treat all people vs just new cases.
Explanation / Answer
Yes, I agree with the fact that in order to find out and understand the risk of breast cancer in woman within the age of 50 – 65, incidence rate is a better indicator and can help in better understanding of the disease. When we talk about the incidence rate, it is basically the number of new cases per population which stands at the risk of disease occurrence at a given time duration. It helps in identifying how frequently a disease occurs in a particular population with a specified period of time. The high incidence rate means a person is more at the risk. In this case when women over 50 – 65 age is considered for breast cancer, the best way to predict it to find out the average occurrence of the disease in a particular population group within a time period. In this the special group of population is women within the age of 50 to 60. On considering the surgeons treating it, the prevalence proportion is better and more convenient indicator as it helps in identifying the number of surgeons needed to treat the affected population.
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