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Table 4 Operating characteristics of the prevalences shown in a.

From: Prediction of BOS by the single-breath nitrogen test in double lung transplant recipients

  Dimension Specificity (%) Sensitivity (%) Positive predictive value (%) Negative predictive value (%)
    BOS BOS 0-p BOS BOS + BOS 0-p BOS BOS + BOS 0-p
FEV1 % basal 90 100 100 57 61 100 100
FVC % basal 96 77 17 71 72 97 96
N2 slope % basal 95 52 43 52 57 95 94
FEV1 % pred. 95 67 0 63 63 96 94
FVC % pred. 95 29 0 43 43 92 90
N2 slope % pred. 93 96 100 57 63 100 100