RT Journal A1 Goss LZ, Rosa RF, O'Brien WM, Ayers CR, Wood J T1 PRedicting death from renal failure in primary hypertension JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1969 FD August 1 VO 124 IS 2 SP 160 OP 164 DO 10.1001/archinte.1969.00300180032006 UL http://dx.doi.org/10.1001/archinte.1969.00300180032006 AB After a retrospective study of 174 individuals who died from chronic primary hypertension, it was found that prediction of death from renal failure could be quantitated on the basis of initial measurement of the systolic blood pressure, cardiac-thoracic ratio, blood urea, and age at the time of initial diagnosis. The group with renal failure had massive cardiomegaly and very contracted kidneys. One half of the population was Negro, but the natural history of their hypertension was not convincingly different from the white group. If initial clinical observations are substituted in the discriminant equation, D=-1.5(age at onset) + 3(percent cardiac-thoracic ratio) + 0.5(systolic blood pressure) + 1(blood urea), and D is greater than 249, 85% of patients died of renal failure. If D is less than 249, 85% of patients died of causes other than renal failure.