TABLE 4

Comparison of IPA diagnostic efficiency between BALF GM and serum GM detection testsa

Sample and ODIFalse-positive rate (%)False-negative rate (%)Sensitivity (%)Specificity (%)PPV (%)NPV (%)Positive-likelihood ratioNegative-likelihood ratioYouden index
BALF GM
    ≥0.519.2824.3275.6880.7263.6488.163.92530.30130.564
    ≥1.09.6435.1464.8690.3675.0085.236.72820.38890.5522
Serum GM
    ≥0.512.8662.1637.8487.1460.8772.622.94250.71330.2498
    ≥1.04.2975.6824.3295.7175.0070.535.6690.79070.2003
  • a Sensitivities, specificities, positive predictive value (PPV), and negative predictive values (NPV) were used to compare the diagnostic value of BALF GM and serum GM detection. BALF, bronchoalveolar lavage fluid; GM, galactomannan; ODI, optical density index.