TABLE 2

Coronary heart disease outcomes

Trial and outcomeEvent rate P valueAbsolute risk reductionRelative risk reductionNumber needed to treat (95% CI)
PlaceboStatin
Primary prevention studies
PROSPER13
Coronary heart disease death and nonfatal myocardial infarction
8.8%7.9%.4010.9%9%NSa
JUPITER28,29
yocardial infarction
1.1%0.6%.0460.5%45%211 (106–32,924)
Secondary prevention studies
PROSPER13
Coronary heart disease death and nonfatal myocardial infarction (includes definite and suspect events)
16.8%12.7%.0044.1%24%25 (15–77)
Afilalo et al meta-analysis31
Nonfatal myocardial infarction
NANANANA26%b38 (16–118)b
Combined primary and secondary prevention studies
PROSPER13
Nonfatal myocardial infarction (excluding silent and unrecognized events)
4.3%3.4%.0990.9%20%NSa
  • a Not statistically significant (P > .05) and numbers needed to treat (NNT) not calculated on these results. NNT calculated on raw numbers if not provided in publication. See Table 1 for duration of treatment required for NNT.

  • b Afilalo et al provided relative risk reductions and NNTs in their publication. Absolute risk reductions not calculated on meta-analytic outcomes.

  • CI = confidence interval; NA = not available; NS = not statistically significant