GSTM1 and cancer: The incidences of concomitant cancer in these studies were 3.8% and 15%, respectively.21,24 Compared with cancer-free patients with ICH, patients with underlying cancer were older, more often male, had received anticoagulation before ICH, had higher prestroke scores according to the Charlson Comorbidity Index, and lower prevalence of diabetes mellitus and arterial hypertension.24 Lower hemoglobin (Hb) levels were typically observed in the cancer group, but platelet count was in the normal range similar to the cancer-free study group.21