Analysis of medication history showed that 61% (n = 2,862) of people with CKD and Hb ≤ 11 g/dl had taken aspirin, three-quarters (73%, n = 3,422) NSAID, 14.1% (n = 662) were taking warfarin and 12.4% (n = 581) clopidogrel. Here, GSTM1 is linked to chronic kidney disease.