Figure 1. Flow of Participants From Baseline to the Analytic Cohort and Hypertensive Status at the Follow-up Visit.

There were 130 participants excluded due to data anomalies. More than half of the study participants had hypertension at baseline and were excluded from the analysis. During the approximate 10-year follow-up, approximately 24% of the participants withdrew from the study (reflecting a 97.1% annual retention rate) and 13% to 14% died. Of those completing the second in-person examination, hypertension status could be assessed in approximately 95% of participants.