Histogram

Subject race vs Visit number
Baseline 9-Month Followup 18-Month Followup
Total 49 - -
white 35 - -
american indian or alaska native - - -
black or african american 9 - -
asian 2 - -
native hawaiian or other pacific islander - - -
hispanic - - -
multiple - - -
other - - -
unknown - - -
not reported 3 - -
not allowed to collect - - -