,Control_All,Treatment_All,Control_AfAm,Treatment_AfAm
Baseline_test,12.1,10.8,12.3,10.7
One_year_followup,24.6,19.4,26.1,21.3
Two_year_followup,39.8,31.1,44.3,33
Three_year_followup,35.5,31.1,38.9,34.6
N,1010,1080,422,488