Table 4 Performance of the low-cost tools
From: Does sequential balloon expulsion test improve the screening of defecation disorders?
Tool /performance measurement | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
Abnormal (> 9 points) clinical DD score | 65 | 10 | 31 | 33 | 31 |
Abnormal (≥ 2 points) Digital rectal examination | 29 | 82 | 50 | 64 | 61 |
FV BET (standard) | 86 | 58 | 57 | 86 | 69 |
VV BET | 83 | 67 | 62 | 86 | 73 |
Sequential BET (VV » FV) | 86 | 67 | 63 | 88 | 75 |