Prevalance = snap-shot (It is like a snapshot being taken along the disease timeline of a person's experience) Incidence = includes only new cases and also includes time so it's a measure of risk. =diseased (in basic model of disease over time) Assess each person's disease status at a particular point in time.
Mar 10, 2022 · Prevalence = (Incidence Rate) x (Average Duration of Disease) If the average duration of disease remains constant, then preventive measures that reduce the incidence of disease would be expected to result in a decreased prevalence. Similarly, if the incidence remained constant, then developing a cure would reduce the average duration of disease, and …
A) Prevalence is the number of new cases of a disease or health condition. B) Incidence is the number of new cases of a disease or health condition. C) Prevalence refers to all of the people with a particular health condition existing in a given population at a given point in time. D) Incidence refers to all of the people with a particular health condition existing in a given …
Oct 19, 2021 · Prevalence is the proportion of a population that has a condition at a specific time, but the prevalence will be influenced by both the rate at which new cases are occurring (incidence) and the average duration of the disease. Incidence reflects the rate at which new cases of disease are being added to the population (and becoming prevalent cases).
Average duration of disease is also important, because the only way you can stop being a prevalent case is to be cured or to move out of the population or die.
Therapy was ineffective and almost all lung cancer cases died. From the time of diagnosis, the average survival was only about six months. So, the prevalence of lung cancer was fairly low. In contrast, diabetes has a long average duration, since it can't be cured, but it can be controlled with medications, so the average duration ...
Raindrops might represent incidence or the rate at which new cases of a disease are being added to the population, thus becoming prevalent cases. Water also flows out of the reservoir, analogous to removal of prevalent cases by virtue of either dying or being cured of the disease. Imagine that incidence (rainfall) and the rate ...
Prevalence is the proportion of a population that has a condition at a specific time, but the prevalence will be influenced by both the rate at which new cases are occurring (incidence) and the average duration of the disease. Incidence reflects the rate at which new cases of disease are being added to the population (and becoming prevalent cases). Average duration of disease is also important, because the only way you can stop being a prevalent case is to be cured or to move out of the population or die. A prevalent case stops being a prevalent case if she is cured, and she also is no longer a prevalent case in the population if she dies or moves out of the population.
Average duration of disease is also important, because the only way you can stop being a prevalent case is to be cured or to move out of the population or die.
After the year 2000, the availability of antiretrovirals fell, and the mortality rate from AIDS began to climb again. As a result, the average duration of disease declined, and the prevalence fell. Several decades ago the average duration of lung cancer was about six months. Therapy was ineffective and almost all lung cancer cases died.
However, they weren't cured of their disease , meaning that the average duration of disease increased. As a result, the prevalence of HIV increased during this period.