Estimated Effect of a 12mmHg Reduction in SBP Over 10 years on the Number-Needed-to-Treat to Prevent a Cardiovascular Disease Event to Baseline BP level and Category of Presumed Cardiovascular RisK Among Nhanes I Epidemiologic Follow-Up Study Participants Accordi Risk group a Risk group b Risk Group C SBP/DBP. Uncorrected Corrected* Uncorrected Corrected* Uncorrected Corrected* mmh 130-139/85-89 23 140-159/90-99 33 20 11 17 ≥160/≥100 10 8 See testor Table 1 for defInition of risk groups *Corrected for regression dilution bias using a re liability coefficient or 0.53 to correct for Imprecision in the measure ment of sBP2. Estimated Effect of a 12mmHg Reduction in SBP Over 10 years on the Number-Needed-to-Treat to Prevent a Cardiovascular Disease Event Among NHANES I Epidemiologic Follow-Up Study Participants According to Baseline BP Level and Category of Presumed Cardiovascular Risk Risk Group A Risk Group B Risk Group C ≥160/ ≥100 16 10 13 7 16 8 140-159/90-99 33 20 19 11 17 9 130-139/85-89 41 25 23 13 19 10 SBP/DBP, Uncorrected Corrected* Uncorrected Corrected* Uncorrected Corrected* mmHg See test or Table 1 for deflnition of risk groups. *Corrected for regression dilution bias using a reliability coefficient or 0.53 to correct for Imprecision in the measurement of SBP