Table 1. Number of EGDs, training period, inspection time, and neoplasm detection rates by endoscopists.
| Detection rate (%) | |||||||||
| Endoscopist | Certified 1 | Intensive training (year) | Median time of group (min) 2 | Median time of endoscopist (min) 2 | No. of EGDs | Biopsy rate (%) | UGI neoplasms | Gastric neoplasms | |
| Fast-speed endoscopists group (n = 1,052) | A | + | ≥ 5 | 6.3 (5.0 – 7.5) | 6.2 (5.1 – 7.2) | 406 | 42.6 | 11 (2.7) | 9 (2.2) |
| B | + | ≥ 5 | 6.3 (4.7 – 7.9) | 435 | 55.6 | 16 (3.7) | 12 (2.8) | ||
| C | + | ≥ 5 | 6.9 (4.7 – 9.1) | 211 | 69.2 | 11 (5.2) | 10 (4.7) | ||
| Moderate-speed endoscopists group (n = 1,314) | D | + | 0.5 | 7.9 (5.3 – 10.5) | 132 | 43.9 | 3 (2.3) | 0 (0) | |
| E | – | 1 | 8.4 (6.9 – 10.0) | 587 | 52.0 | 22 (3.7) | 15 (2.6) | ||
| F | + | 2 | 9.0 (7.1 – 11.0) | 9.3 (6.7 – 12.0) | 185 | 42.2 | 5 (2.7) | 4 (2.2) | |
| G | – | 0.5 | 9.8 (7.9 – 11.7) | 173 | 46.2 | 5 (2.9) | 3 (1.7) | ||
| H | + | ≥ 5 | 9.9 (8.3 – 11.7) | 236 | 49.6 | 9 (3.8) | 5 (2.1) | ||
| Slow-speed endoscopists group (n = 1,559) | I | + | ≥ 5 | 11.8 (9.0 – 14.7) | 10.1 (7.5 – 12.8) | 170 | 35.9 | 6 (3.5) | 5 (2.9) |
| J | + | 2 | 10.9 (9.1 – 12.7) | 169 | 51.5 | 7 (4.1) | 5 (3.0) | ||
| K | + | ≥ 5 | 11.2 (8.8 – 13.6) | 148 | 55.4 | 6 (4.1) | 3 (2.0) | ||
| L | – | 0.5 | 11.7 (8.2 – 15.1) | 278 | 53.6 | 5 (1.8) | 4 (1.4) | ||
| M | + | 1.5 | 11.7 (9.5 – 13.9) | 200 | 56.5 | 11 (5.5) | 8 (4.0) | ||
| N | – | 0.5 | 12.3 (9.3 – 14.9) | 160 | 70.0 | 4 (2.5) | 4 (2.5) | ||
| O | – | 0.5 | 12.7 (8.8 – 15.2) | 148 | 45.9 | 3 (2.0) | 2 (1.4) | ||
| P | + | 1 | 13.3 (10.0 – 16.5) | 287 | 42.9 | 7 (2.4) | 4 (1.4) | ||
| Total or Median | 16 | 11 | 9.3 (6.6 – 12.0) | 3925 | 50.8 | 131 (3.3) | 93 (2.4) | ||
EGD, esophagogastroduodenoscopy; UGI, upper gastrointestinal neoplasms.
1
Certified by the Japan Gastroenterological Endoscopy Society
2
Inspection time of EGD without biopsy cases, median (interquartile range)