Parameter estimates of the risk equations for first and second AMI and HF events.

All covariates are significant at the 5% level. Weibull proportional hazards regression with the Prentice, Williams, and Peterson gap time model was used for estimation. Abbreviations: HF, heart failure; AMI, acute myocardial infarction; TC/HDL, total to HDL cholesterol ratio. a. Significant at the 10% level, but significant interaction with LDL; b. applied as splines in the equation; c. history of event before diagnosis of type 2 diabetes; d. HF before first AMI.