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Patients according to CEAP classification.
| NR | C1 | 34.48 (10) | NR < 50 | C1 | 30.76 (4) |
| C2 | 69.24 (9) | ||||
| C2 | 62.07 (18) | C3 | 0.00 (0) | ||
| C4 | 0.00 (0) | ||||
| C3 | 3.45 (1) | NR ≥ 50 | C1 | 37.50 (6) | |
| C2 | 56.25 (9) | ||||
| C4 | 0.00 (0) | C3 | 6.25 (1) | ||
| C4 | 0.00 (0) | ||||
| R | C1 | 0.00 (0) | R < 50 | C1 | 0.00 (0) |
| C2 | 34.37 (11) | ||||
| C2 | 44.44 (36) | C3 | 53.13 (17) | ||
| C4 | 12.50 (4) | ||||
| C3 | 48.15 (39) | R ≥ 50 | C1 | 0.00 (0) | |
| C2 | 51.02 (25) | ||||
| C4 | 7.41 (6) | C3 | 44.89 (22) | ||
| C4 | 4.09 (2) |
Abbreviations: NR = absence of pathologic reflux; R = presence of pathologic reflux.
