Table 1.
Flexible endoscopy: Sensitivity for invasive growth; correlation with the number of biopsies
| Number of biopsies | ≤ 2 | 3 | 4 | 5 | 6 | 7 | 8 | ≥ 9 | |
| Marshall (1993) | Sens | 68.3 | 78.3 | 78.3 | 78.3 | ||||
| n = 701 | 70 | 70 | 70 | 70 | |||||
| Colleypriest (2009) | Sens | 80% | 86% | 86% | 88% | 98% | 100% | 98% | 100% |
| n = 217 | Not specified | ||||||||
| Dabos (2011) | Sens | 50% | 72% | 70% | 76% | 88% | 91% | 100% | |
| n = 149 | Not specified | ||||||||
| Current study | Sens | 40% | 30% | 76% | 75% | 83% | 50% | 91% | 72% |
| n = 113 | 7 | 12 | 21 | 17 | 14 | 16 | 13 | 13 |
1
Authors studied the value of reviewing 2, 4 and 6 additional biopsies, taken in every patient.