*4.1. Clinical Characteristics of the Patients*

Patients with a confirmed diagnosis of FSGS (n = 30) and MCD (n = 9) were recruited for the study, 20 men and 19 women, aged 19 to 69 years, median 37 years [27,57]. The exclusion criteria were: active urinary infection, diabetes mellitus, obesity, severe arterial hypertension, liver disease, rheumatic systemic diseases, stage 5 chronic kidney disease. Impaired renal function (eGFR CKD-EPI < 60 mL/min/1.73 m2) was detected in 16 patients, saved kidney function—in 23 (eGFR CKD-EPI > 60 mL/min/1.73 m2).

The characteristics of the examined patients are presented in Table 5.

**Table 5.** Characteristics of the patients.


<sup>1</sup> Focal segmental glomerulosclerosis, <sup>2</sup> Minimal change disease, <sup>3</sup> Estimated glomerular filtration rate using the CKD-EPI formula. The table shows the median, in brackets—the 1st and 3rd quartiles.
