CHGA and type 1 diabetes mellitus: In the case of ChgA—the highest concentrations were observed in patients just after the diagnosis of T1D (median 74.5 ng/mL, range 40.5–98.5) and they statistically differed significantly both from the control group (34.5 ng/mL p = 0.005) and the groups of patients treated for 3–5 years (52.5 ng/mL, p = 0.0001), 6–7 years (54.5 ng/mL, p = 0.0005, and >7 years (50.3 ng/mL, p = 0.000009).