Attrition is better than you think: > Adherence or compliance was reported in 15 of the 33 RCTs; the mean (SD) adherence rate was 78% (18%). Of the 18 remainin

Attrition is better than you think: > Adherence or compliance was reported in 15 of the 33 RCTs; the mean (SD) adherence rate was 78% (18%). Of the 18 remaining RCTs that did not report adherence or compliance, 2 reported attendance rates, which ranged from 87.5% ^53^ to 94%. ^71^ Of course, they also note that reporting of compliance should be better done and intention-to-treat analysis should either be done or specified to have been done.