RT Journal A1 Stamler J, Neaton JD T1 THe multiple risk factor intervention trial (mrfit)—importance then and now JF JAMA JO JAMA YR 2008 FD September 17 VO 300 IS 11 SP 1343 OP 1345 DO 10.1001/jama.300.11.1343 UL http://dx.doi.org/10.1001/jama.300.11.1343 AB In 1986 in JAMA, we reported findings of the 6-year follow-up of the large cohort screened for the Multiple Risk Factor Intervention Trial (MRFIT).1 The article, challenging existing dogmas about the relationship between cholesterol and coronary heart disease (CHD), generated much interest. Now, the 25-year results are available with almost 7% (23 382) of the men deceased due to CHD.2- 4 The 1986 findings and conclusions regarding the relationship of a single measurement of serum cholesterol to premature CHD mortality are verified in depth by the 25-year data with extraordinary precision due to large size of the cohort, long follow-up, and a large number of CHD deaths.