Seals SR, et al. – Researchers detailed the Jackson Heart Study (JHS) blood pressure (BP) comparability in this report. In 2,117 participants, BP measurements from both a random-zero sphygmomanometer (RZS) BP measurement device and from an oscillometric device (OD) were obtained simultaneously during this exam for the purpose of calibration. For calibrating systolic BP (SBP) and diastolic BP (DBP), the following five methods were considered: ignoring the change, ordinary least squares regression, adding the average difference, Deming regression, and robust regression. Using the RZS and OD, the mean (SD) SBP was 125.5 (19.2) and 126.5 (19.9), respectively, and the mean (SD) DBP was 76.4 (10.6) and 74.0 (11.0), respectively. For SBP and for DBP, the correlation between RZS and the OD was 0.90 and 0.80, respectively. Application of each of the five calibration methods provided a similar prevalence of high BP and hypertension and links with albuminuria. For calibration, robust regression was selected, giving the following equations: SBP_OD=11.02+0.92×SBP_RZS. A higher R² statistic was observed with these equations vs using calibration equations from the Coronary Artery Risk Development in Young Adults Study and the Heinz Nixdorf Recall Study.