highly significantp ≤ .005
For each of these 2 age cutoffs, the difference in cup volumes between the older and younger tamoxifen users was highly significant (p ≤ .005).
For each of these 2 age cutoffs, the difference in cup volumes between the older and younger tamoxifen users was highly significant (p ≤ .005).
In contrast, none of the comparisons between anastrozole users and control subjects approached significance for any cup dimension.