The INOCA group was more likely to be male (p < 0.001), had a higher prevalence of diabetes mellitus (p = 0.007), exhibited higher BMI (p = 0.011) and ALT levels (p < 0.001), and had higher levels of inflammatory markers, such as WBC, NLR, and PLR than the non-INOCA group (all p < 0.05). Here, GPT is linked to diabetes mellitus.