Statistical analysis for a prospective cohort study with quantifiable outcomes?
November 15, 2012 12:57 PM Subscribe
What kind of statistical analysis would I use to compare the outcomes of a prospective cohort study, one with an intervention and one as the control?
posted by legospaceman to science & nature (9 answers total) 2 users marked this as a favorite
Sorry, more specifically, my friend and I are performing a prospective cohort study where there are two groups of 15 athletes, and the goal is to provide one (randomized) cohort with an intervention that we think will prevent injuries; we are then going to compare outcomes by giving everyone in the intervention and the control group a validated test that is a good predictor for injuries. The test output is quantifiable, it will be either a single number for each subject, or a set of 3-5 numbers. Once we have test results for both groups, what kind of analysis would make the most sense to use?
Just to be clear, we are not tracking injuries, so there is no 'survival' time as in clinical trials. We are simply using the validated test as a proxy to extrapolate likelihood for injury. The test numbers are the outcome. Is there some specific justification we can provide for our (quite low) n, aside from the fact that this is just what we consider doable at this point?
Normally for something like this I would sit down and try to read more on the internet, but we're short on time as we unexpectedly have to submit this for IRB approval with an organization by tomorrow.