CST4 and Hypocalcemia: Patients in the insulin treatment group had lower prenatal TG (Z = −10.392, P < 0.001), cholesterol (Z = −8.494, P < 0.001), LDL (Z = −3.918, P < 0.001), APO A1 (t = 2.410, P = 0.019), cystatin (Z = −4.195, P < 0.001), incidence of hypocalcaemia (P = 0.036), and ALC (Z = −3.426, P = 0.001) and higher DBIL (Z = −2.338, P = 0.019), N/L ratio (Z = −2.751, P = 0.006), and Ca in blood (Z = −2.944, P = 0.003) (Table 2).