GSTM1 and alkaline phosphatase measurement: The clinical predictive value of the ALP/Hb ratio and the LDH/Hb ratio in differentiating AP subtypes is shown by a comparison of the three groups, as seen in Fig 2A and 2B, which revealed that the ALP/Hb and LDH/Hb ratios were considerably greater in the SAP group than in the MAP and MSAP groups (P < 0.001).