3. Estimated Effect of a 12mmHg reduction in SBP Over 10 years on the Number-Needed-to-Treat to Prevent a Cardiovascular Disease Death 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* mmhg 130-13985-89 701 486 60 36 140-159/90-99 394 273 44 31 18 160/>100 34 21 12 20 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 me asure ment of sBp3. Estimated Effect of a 12mmHg Reduction in SBP Over 10 years on the Number-Needed-to-Treat to Prevent a Cardiovascular Disease Death 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 49 34 21 12 20 11 140-159/90-99 394 273 44 27 31 18 130-139/85-89 701 486 60 36 37 21 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