As with other meta-analyses, given the lack of data in
each trial, we did not adjust our analysis for adherence
to therapy. Also, the results are subject to limitations
inherent to any meta-analysis based on pooling of data
from different trials with different duration, different
definitions for peripheral edema and different patient
groups. All the analyses were divided into subgroups
based on duration of therapy, as it had significant impact
on both the incidence and withdrawal due to edema.
Most studies failed to report the edema rates based on
sex, thus it could not be ascertained whether women have
higher incidence of edema.