PU555 Unit 1 Research Question Discussion Post Example

One Grant, Two Questions, and Why I Would Fund the Second: A Unit 1 Discussion Board Post Choosing Between a Supplement Trial and Finding Out How Many Adults With Reduced Kidney Function Were Never Told

PU555 · Unit 1 Discussion Board Post

Posted by [Student Name]

The grant and the two proposals are invented for the post; the kidney disease awareness figures and the research cited are real.

Initial Post

Given one grant and two questions, I would fund the second, and the reason is not that supplements are uninteresting. It is that the second question has a larger gap between what is already recorded and what anybody acts on. Question one: does a widely sold herbal supplement slow the loss of kidney function in adults with early chronic kidney disease? Answering it well needs a randomized trial, several years, a large sample and a budget this grant does not have. A small trial would produce a result too imprecise to act on, which is the worst outcome in research terms because it will be cited as though it were informative. Question two: among adults whose laboratory results meet the definition of reduced kidney function, how many have ever been told they have kidney disease? This question can be answered from data already collected, and the answer is known to be alarming. In national survey data, fewer than one in ten adults with moderately reduced kidney function reported having been told, and awareness was low even among people with a usual source of care (Plantinga et al., 2008). A later synthesis across many studies and settings found awareness still low and strongly dependent on how the question was asked (Chu et al., 2021). The information needed to tell these patients is already in their charts. The failure is downstream of measurement, which is exactly where a public health study can be useful. Three reasons for my choice. The data exist, so the budget buys analysis and interviews rather than years of follow-up. The finding is actionable by someone: a health system can change how results are communicated without waiting for a new drug. And the question is about a process our own system controls, which makes it harder to dismiss than a question about a product. What would change my mind: evidence that awareness has risen sharply since the older estimates, which would make the second question less urgent. The more recent synthesis suggests it has not, but it is drawn from heterogeneous settings, so a current local estimate is part of what the study would produce.

Reply to Classmate A

You chose the supplement question on the grounds that patients are already taking the product, which is a fair point about relevance. My concern is power: with the sample this grant could fund, a true small benefit and no benefit at all would produce the same confidence interval, and the paper would still be quoted in a pharmacy aisle.

Reply to Classmate B

Your argument that awareness studies only describe a problem is the objection I take most seriously. I would answer that a description with a denominator is what makes a target, and that the people who have to act, laboratories and primary care practices, cannot be asked to change a process without an estimate of how often it fails locally.

References

Chu, C. D., Chen, M. H., McCulloch, C. E., Powe, N. R., Estrella, M. M., Shlipak, M. G., & Tuot, D. S. (2021). Patient awareness of CKD: A systematic review and meta-analysis of patient-oriented questions and study setting. Kidney Medicine, 3(4), 576-585. https://doi.org/10.1016/j.xkme.2021.03.014

Plantinga, L. C., Boulware, L. E., Coresh, J., Stevens, L. A., Miller, E. R., Saran, R., Messer, K. L., Levey, A. S., & Powe, N. R. (2008). Patient awareness of chronic kidney disease: Trends and predictors. Archives of Internal Medicine, 168(20), 2268-2275. https://doi.org/10.1001/archinte.168.20.2268