Multivariable analysis showed that HCMV positive (OR = 1.851; 95% CI = 1.425 –2.403; P < 0.001), IL-6 (OR = 1.010; 95% CI = 1.002 –1.018; P = 0.013), and IL-1β (OR = 1.410; 95% CI = 1.348 –1.474; P < 0.001) were all significantly correlated with GDM (Table 3). Here, IL6 is linked to gestational diabetes.