Table 2.
Distribution of endoscopic therapy
| Procedure | Overall N (%) | Early (2004–2009) N (%) | Late (2010–2014) N (%) |
|---|---|---|---|
| Local tumor destruction | |||
| Photodynamic therapy | 9 (4.0) | 9 (8.3) | 0 |
| Cryosurgery | 6 (2.7) | 4 (3.7) | 2 (1.7) |
| Laser | 5 (2.2) | 3 (2.8) | 2 (1.7) |
| NOS | 6 (2.7) | 2 (1.8) | 4 (3.5) |
| Local tumor excision | |||
| Polypectomy | 16 (7.1) | 7 (6.4) | 9 (7.8) |
| Excisional biopsy | 96 (42.9) | 42 (38.5) | 54 (47.0) |
| Laser excision | 2 (0.9) | 1 (0.9) | 1 (0.9) |
| NOS | 46 (20.5) | 23 (21.1) | 23 (20.0) |
| Combined local tumor destruction and excision | 38 (17.0) | 18 (16.5) | 20 (17.4) |
NOS, not otherwise specified.