Table 3.
Number of juvenile polyps according to GI tract site.
| Index patients | Nonindex patients | |||||
|---|---|---|---|---|---|---|
| Total | SMAD4 | BMPR1A | Total | SMAD4 | BMPR1A | |
| Stomach | 31 | 24 | 7 | 17 | 15 | 2 |
| Few | 9 | 3 (13%) | 6 (86%) | 7 | 5 (33%) | 2 (100%) |
| Multiple | 18 | 17 (71%) | 1 (14%) | 6 | 6 (40%) | 0 |
| Massive | 4 | 4 (17%) | 0 | 4 | 4 (27%) | 0 |
| Small intestine | 10 | 7 | 3 | 9 | 9 | 0 |
| Few | 6 | 5 (71%) | 1 (33%) | 5 | 5 (56%) | 0 (%) |
| Multiple | 4 | 2 (29%) | 2 (67%) | 4 | 4 (44%) | 0 (%) |
| Massive | 0 | 0 | 0 | 0 | 0 | 0 |
| Colon | 92 | 49 | 43 | 37 | 23 | 14 |
| Few | 11 | 7 (14%) | 4 (9%) | 9 | 5 (22%) | 4 (29%) |
| Multiple | 69 | 33 (68%) | 36 (84%) | 27 | 17 (74%) | 10 (71%) |
| Massive | 12 | 9 (18%) | 3 (7%) | 1 | 1 (4%) | 0 |
| Proximal colon | 40 | 25 | 15 | 13 | 8 | 5 |
| Few | 7 | 5 (20%) | 2 (13%) | 7 | 5 (63%) | 2 (40%) |
| Multiple | 32 | 19 (76%) | 13 (87%) | 6 | 3 (37%) | 3 (60%) |
| Massive | 1 | 1 (4%) | 0 | 0 | 0 | 0 |
| Distal colon | 30 | 20 | 10 | 6 | 3 | 3 |
| Few | 14 | 9 (45%) | 5 (45%) | 2 | 0 | 2 (67%) |
| Multiple | 15 | 10 (50%) | 5 (55%) | 4 | 3 (100%) | 1 (33%) |
| Massive | 1 | 1 (5%) | 0 | 0 | 0 | 0 |
| Rectum | 38 | 20 | 18 | 8 | 3 | 5 |
| Few | 16 | 11 (50%) | 5 (28%) | 6 | 3 (100%) | 3 (60%) |
| Multiple | 22 | 9 (50%) | 13 (72%) | 2 | 0 | 2 (40%) |
| Massive | 0 | 0 | 0 | 0 | 0 | 0 |
| Other polyps | 48 | 25 | 23 | 16 | 12 | 4 |
| Few | 15 | 5 (20%) | 10 (43%) | 8 | 5 (42%) | 3 (75%) |
| Multiple | 29 | 18 (72%) | 11 (48%) | 8 | 7 (58%) | 1 (25%) |
| Massive | 4 | 2 (8%) | 2 (9%) | 0 | 0 | 0 |
GI gastrointestinal.