Spigelman score | First endoscopy (n = 151) | Last endoscopy (n = 146) | P-value |
---|---|---|---|
n (%) | n (%) | ||
Spigelman score | |||
Number of polyps | |||
0 points 1 point: 1–4 2 points: 5–20 3 points: >20 | 72 (48) 19 (13) 18 (12) 42 (28) | 22 (15) 28 (19) 26 (18) 70 (48) | < 0.001 |
Polyp size | |||
0 points 1 point: 1–4 mm 2 points: 5–10 mm 3 points: >10 mm | 72 (48) 29 (19) 43 (28) 7 (5) | 22 (15) 42 (29) 45 (31) 37 (25) | < 0.001 |
Histology | |||
0 points 1 point: tubular 2 points: tubulovillous 3 points: villous | 72 (48) 79 (52) 0 (0) 0 (0) | 22 (15) 124 (85) 0 (0) 0 (0) | < 0.001 |
Dysplasia | |||
0 points 1 point: mild 2 points: moderate 3 points: severe | 72 (48) 47 (31) 30 (20) 2 (1) | 22 (15) 42 (29) 50 (34) 32 (22) | < 0.001 |
Spigelman stage | |||
0 I: 1–4 points II: 5–6 points III: 7–8 points IV: 9–12 points | 72 (48) 11 (7) 22 (15) 43 (28) 3 (2) | 22 (15) 4 (3) 40 (27) 54 (37) 26 (18) | < 0.001 |