Chen et al. found that the CA haplotype of protein C -1654C/T and -1641G/A was associated with increased risk of death and organ dysfunction in Chinese Han patients with severe sepsis (Hum Genet 123:281-287, 2008). We similarly tested for association of the C allele of protein C 673 T/C (rs2069912) (linkage disequilibrium with the CA haplotype, D' = 100%) in a cohort of 100 North American East Asians with severe sepsis. The C allele was associated with increased mortality and organ dysfunction, consistent with Chen et al.