What's the base rate for the comparable population? That sounds bad on a first read, but: If only 47% (or 41%) of surveyed gained weight, that's probably lower

What's the base rate for the comparable population? That sounds bad on a first read, but: If only 47% (or 41%) of surveyed gained weight, that's probably lower than the population-wide average. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9106499/#:~:text=Mean%20(%C2%B1SE)%2010%2D,more%20across%20the%2010%2Dyears https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9106499/#:~:tex.... (results from a 10-year study show a higher rate of weight gain)