For further analysis, we compared the median values of urinary hK1-specific amidaseactivities of HF [0.104 μM/(min · mg creatinine)] and hypertensivepatients [0.210 μM/(min · mg creatinine)] of our previousstudies6,3 with the value reported herein for CAD patients [0.146μM/(min · mg creatinine)]. Here, HK1 is linked to hydrops fetalis.