The plasma MIF levels of stable angina pectoris (SAP) subgroup, unstable angina pectoris (UAP) subgroup, and control group were 61.52 ± 4.3 ug/L, 66.79 ± 6.29 ug/L, and 48.08 ± 6.48 ug/L, respectively (Table 3). Here, MIF is linked to intermediate coronary syndrome.