I wouldn't be at all surprised if that is the level of drop out. As we hear all the time on this site, so many GPs are ill informed, discourage the use of HRT and know very little about he various preparations, so many women just throw in the towel if they get side effects.
More education and better choices are needed. Many GPs need to be updated a.s.a.p.
GREAT BIG POSTERS ABOUT THIS SITE ARE NEEDED IN EVERY GP SURGERY.
DG x