Table 3

General and specific sensitivities, positive and negative predictive values

ParameterMinimal (%)Calculated asMaximal (%)Calculated as
Specificity100.049/(49+0)100.049/(49+0)
Sensitivity
 General80.9(58+10+4+49–15)/13192.4(58+10+4+49)/131
 Malignancy74.458/(58+5+15)92.158/(58+5)
 Mycobacterial infection38.510/(10+1+15)90.910/(10+1)
 Other benign conditions17.44/(4+4+15)50.04/(4+4)
 Autoimmune—systemic disease0.00/(0+3+15)0.00/(0+3)
 Bacterial infection/parapneumonic11.12/(2+1+15)66.72/(2+1)
 Benign asbestos-related pleural effusion11.72/(2+0+15)100.02/(2+0)
Positive predictive value100.072/72100.072/72
Negative predictive value57.6(49−15)/5983.149/59