65% is aiming high. The 65% includes only the PP group receiving active treatment before the crossover, which is only 30 participants, after excluding those getting worse tinnitus or receiving no benefit and not figured in the analysis. Add back in those 5 excluded participants, you're closer to 54% of 35 analyzed who received clinical meaningful improvement when receiving the active treatment. But as mentioned, 25% could be placebo effect as that is what the control side of the study showed. Also keep in mind that some people were not allowed to participate in the study as they were expected to have less positive outcomes, so those figures for tinnitus improvement would have likely been lower with more patients from the broader public who want to use the equipment who couldn't have qualified for the study, like some members here.
One thing I mentioned up thread was:
So, without the placebo effect, it's bound to be about 20%-25% less who truly benefit rather than 54%, but hopefully not too low so that we can chalk it up to the device actually working effectively for a substantial percentage of people rather than just the placebo effect benefit, which isn't likely to last long term for many. Personally, the placebo effect hasn't helped me with quite a few different things I've tried, so I want to see real lasting reduction in tinnitus for 50% of users, which may be too optimistic. 50% including those with the placebo effect is a lower bar to reach.
Some of those early users will come to realize it's not truly working and was just a placebo effect just as with many other things that have been discussed on Tinnitus Talk in regard to supplements, Lenire, etc.