RT Journal A1 Perlstein TS, Weuve J, Beckman JA T1 IS red blood cell distribution width a marker of overall membrane integrity?—reply JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2009 FD September 12 VO 169 IS 16 SP 1540 OP 1540 DO 10.1001/archinternmed.2009.276 UL http://dx.doi.org/10.1001/archinternmed.2009.276 AB As the basis for this suggestion, the authors speculate that RDW is associated with membrane cholesterol content. This is based on the declining prevalence of hypercholesterolemia with increasing RDW quintile. In an additional multivariate-adjusted analysis, the association of hypercholesterolemia with RDW did not persist. Also, circulating cholesterol levels are not associated with total cholesterol content in erythrocyte membranes.2 We do not believe that our data address the association of RDW with membrane cholesterol content. More importantly, we do not believe that our data should in any way be construed as suggesting that statin therapy be withheld from appropriate patients at risk for cardiovascular events, in whom the demonstrated benefits of statin therapy are consistent and compelling.3