Corrections
===========


In the abstract of a recent article by Sylvie Perreault and colleagues1 units were mistakenly introduced for the ratios of total cholesterol to high-density lipoprotein cholesterol. The ratios should be dimensionless. We apologize for this error.

## Reference

1.  1. Perreault S, Dorais M, Coupal L, Paradis G, Joffres MR, Grover SA. Impact of treating hyperlipidemia or hypertension to reduce the risk of death from coronary artery disease. CMAJ 1999;160(10):1449-55.
    
    [Abstract/FREE Full Text](http://www.cmaj.ca/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NDoiY21haiI7czo1OiJyZXNpZCI7czoxMToiMTYwLzEwLzE0NDkiO3M6NDoiYXRvbSI7czoyMToiL2NtYWovMTYxLzEvMjEuMi5hdG9tIjt9czo4OiJmcmFnbWVudCI7czowOiIiO30=)