Table 2.
Summary of the bivariate indices of diagnostic accuracy of low SI in the HBP.
| REFERENCE | N | TP | TN | FP | FN | Sen | Spe | LR+ | LR- |
|---|---|---|---|---|---|---|---|---|---|
| Bieze M | 52 | 23 | 27 | 1 | 1 | 0.958 | 0.964 | 20.833 | 0.043 |
| Grazioli L | 111 | 40 | 62 | 6 | 3 | 0.930 | 0.912 | 10.543 | 0.077 |
| Mohazjer K | 40 | 6 | 34 | 0 | 0 | 1.000 | 1.000 | 65.000 | 0.072 |
| Purysko AS | 47 | 12 | 32 | 3 | 0 | 1.000 | 0.914 | 9.890 | 0.043 |
| Grieser C | 115 | 62 | 44 | 0 | 9 | 0.873 | 1.000 | 78.125 | 0.133 |
| Portilha | 32 | 8 | 23 | 1 | 0 | 1.000 | 0.958 | 15.741 | 0.059 |
| POOLED RESULT | 0.921 | 0.953 | 13.827 | 0.103 | |||||
| 95% CI | (0.868-0.957) | (0.917-0.976) | (7.811-24.479) | (0.064-0.167) | |||||
| P* | 0.237 | 0.059 | 0.366 | 0.691 | |||||
| I2 %§ | 26.3% | 53.0% | 7.8% | 0.0% |
*p value use the Cochran-Q method to test the heterogeneity of the pooled data. Values <0.05 indicate substantial heterogeneity. §I2 is the Higgin′s index for heterogeneity and values greater than 50 % indicate substantial heterogeneity.
Abbreviations: TP=true positive; TN=true negative; FP=false positive; FN=false negative; Spe=specificity; Sen=sensitivity; LR+=positive likelihood ratio; LR-=negative likelihood ratio.