Table 4.
Diagnostic yield of 22-guage & 25-guage needle on histology
| 22G (n=47) | 25G (n=47) | p | ||
| Pancreas & others (n=36) | ||||
| Sampling rate | 69% (25/36) | 64% (23/36) | 0.62 | |
| Sensitivity | 64% (14/22) | 67% (14/21) | 0.83 | |
| Specificity | 100% (3/3) | 100% (2/2) | ns | |
| PPV | 100% (14/14) | 100% (14/14) | ||
| NPV | 27% (3/11) | 22% (2/9) | ||
| Submucosal tumor (n=11) | ||||
| Sampling rate | 64% (7/11) | 64% (7/11) | 0.66 | |
| Sensitivity | 64% (7/11) | 71% (5/7) | 0.45 | |
| Specificity | - | - | - | |
| PPV | 100% (7/7) | 100% (5/5) | ||
| NPV | - | 0% (2/2) | ||
| Total (n=47) | ||||
| Sampling rate | 68% (32/47) | 64% (30/47) | 0.66 | |
| Sensitivity | 72% (21/29) | 68% (19/28) | 0.71 | |
| Specificity | 100% (3/3) | 100% (2/2) | ns | |
| PPV | 100% (21/21) | 100% (19/19) | ||
| NPV | 27% (3/11) | 18% (2/11) | ||
| Accuracy | 75% (24/32) | 70% (21/30) | 0.66 | |