Participants were seen in clinic for study visits at randomization, and at months 1, 2, 3 and every 3 months thereafter. Blood pressure at each study visit was measured using the average of three readings obtained with an automated oscillometric device (Model HEM-907XL; Omron Healthcare) at 1-minute intervals after the participant was seated for 5 minutes. While the SPRINT Manual of Procedures recommended that staff leave the participant for the 5-minute rest period, BP measurements were performed with the patient attended or unattended, depending on the site.15 (link)