Table 1.
Characteristics of each surgical center.
| City | Number of Patients | Histological Distribution: | Preservation Rate | ||
|---|---|---|---|---|---|
| Tumor-Like | Benign Neoplasm | Malignant Neoplasm | |||
| Warsaw 1 | 105 | 57 | 42 | 6 | 59.4% |
| Lodz | 26 | 15 | 10 | 1 | 61.5% |
| Warsaw 2 | 20 | 20 | 0 | 0 | 10.0% |
| Zabrze | 40 | 27 | 12 | 1 | 70.0% |
| Katowice | 30 | 4 | 24 | 2 | 40.0% |
| Kielce | 30 | 8 | 17 | 5 | 69.2% |
| Szczecin | 22 | 16 | 5 | 1 | 68.2% |
| Poznan | 43 | 24 | 14 | 5 | 69.5% |
| Wroclaw 1 | 62 | 35 | 22 | 5 | 48.4% |
| Krakow | 65 | 8 | 51 | 6 | 87.7% |
| Wroclaw 2 | 17 | 10 | 6 | 1 | 45.5% |
| Olsztyn | 28 | 16 | 11 | 1 | 92.8% |
| Opole | 16 | 4 | 9 | 3 | 20.0% |
| Rzeszow | 44 | 20 | 21 | 3 | 63.2% |
| Zielona Gora | 5 | 4 | 1 | 0 | 75.0% |
| Bydgoszcz | 14 | 1 | 10 | 3 | 28.6% |
| Lublin | 28 | 17 | 10 | 1 | 50.0% |
Warsaw 1 (Department of Pediatric Surgery and Organ Transplantation, The Children’s Memorial Health Institute). Warsaw 2 (Clinic of Pediatric Surgery, Institute of Mother and Child). Wroclaw 1 (Pediatric Surgery and Urology Department, Wroclaw Medical University). Wroclaw 2 (Pediatric Surgery Department at Dolnośląski Szpital Specjalistyczny im. T. Marciniaka).