Table 2 Comparing FAP versus AFAP upper gastrointestinal phenotypes
Characteristics | Total (n = 150) | FAP (n = 79) | AFAP (n = 71) | p-value1 |
|---|---|---|---|---|
Number duodenal polyps: | ||||
Median (25th–75th percentile) | 7 (1–18) | 17 (8–33) | 4 (0–7) | < 0.0001* |
Sum diameter duodenal polyps: | ||||
Median (25th–75th percentile) | 15.5 (5–43) | 32 (15–75) | 7 (0–15) | < 0.0001* |
Number with zero duodenal polyps | 27 (18.0%) | 6 (7.6%) | 21 (29.6%) | 0.0005 |
Spigelman classification: 0 | 27 (18.0%) | 6 (7.6%) | 21 (29.6%) | < 0.0001* |
I | 19 (12.7%) | 3 (3.8%) | 16 (22.5%) 30 (42.3%) | |
II | 81 (54%) | 51 (64.6%) | ||
III | 22 (14.7%) | 18 (22.8%) | 4 (5.6%) | |
IV | 1 (0.7%) | 1 (1.3%) | 0 (0%) | |
Number of ampullas with adenoma involvement: | ||||
Yes | 20 (13.3%) | 15 (19%) | 5 (7%) | 0.0659 |
No | 97 (64.7%) | 50 (63.3%) | 47 (66.2%) | |
Missing | 33 (22%) | 14 (17.7%) | 19 (26.8%) | |
Sum diameter duodenal polyps ≥10 mm | 65% (n = 97) | 82% (n = 67) | 44% (n = 30) | < 0.0001* |
Number gastric polyps: | ||||
Median (25th–75th percentile) | 72.5 (15–200) | 50 (15–150) | 100 (1–200) | 0.6703 |
Patients with > 10 gastric polyps | 78.0% (117) | 81.0% (64) | 74.7% (53) | 0.3474 |