Table 2.
Comparison of the diagnostic efficiency of IPA between the PAS and GMS of LCT in BAL fluid∗.
| PAS | GMS | P value | |
|---|---|---|---|
| Sensitivity (%) | 81.58 | 92.11 | 0.175 |
| Specificity (%) | 72.73 | 81.82 | 0.611 |
| NPV (%) | 53.33 | 75.00 | 0.247 |
| PPV (%) | 91.18 | 94.59 | 0.574 |
| False-positive rate (%) | 27.27 | 18.18 | — |
| False-negative rate (%) | 18.42 | 7.89 | — |
| Positive likelihood ratio | 2.99 | 5.07 | — |
| Negative likelihood ratio | 0.25 | 0.10 | — |
∗Sensitivity, specificity, PPV, and NPV were used to compare the diagnostic value of the PAS and GMS of LCT in BAL fluid. IPA: invasive pulmonary aspergillosis; PAS: periodic acid-Schiff; GMS: Grocott's methenamine sliver; LCT: liquid-based cytopathology test; BAL: bronchoalveolar lavage; NPV: negative predictive values; PPV: positive predictive value.