Fig. 2From: A case study of SMART attributes: a qualitative assessment of generalizability, retention rate, and trial qualityRetention rate in CATIE and traditional RCTs of patients with schizophrenia by the planned length of follow-up of the trial. Circle radius is a function of the total number enrolled in the trial (for reference the CATIE trial enrolled 1460 participants). The black line indicates the follow-up rate by month in CATIE, with retention rate at the 18-month CATIE follow-up indicated by the black circleBack to article page