GSTM1 and cardiovascular disorder: As shown in Table 2, hepatic rSO2 was independently associated with BMI (standardized coefficient: 0.294), Hb levels (standardized coefficient: 0.294), a history of cardiovascular disease (standardized coefficient: -0.157), the mean BP (standardized coefficient: 0.154), and the serum albumin concentration (standardized coefficient: 0.150).