Despite the finding of Kim et al. (2009) that the patients carrying AA or AC genotypes are 1.43 times more likely to develop SLE versus the CC group (p = 0.00047), we were unable to find an association between CDKN1A SNP rs762624 and risk of developing lupus nephritis. The gene discussed is CDKN1A; the disease is systemic lupus erythematosus.