Table 4.

Comparison between abnormal pleural cytopathology (malignancy + atypical cells + reactive cells) and FDG-PET scan results.

	Pleural Cytopathology Positive + Atypical and Reactive Cells	Pleural Cytopathology Negative
FDG-PET Positive	69	7
FDG-PET Negative	16	8

FDG-PET uptake and positive/atypical cytopathology: sensitivity, 81.2%; specificity, 53.3%. Positive predictive value: 90.8%; 95% CI: 85.0–94.5%. Negative predictive value: 33.3%; 95% CI: 20.7–48.9%. Positive likelihood ratio: 1.74; 1.00–3.02. Negative likelihood ratio: 0.35; 0.18–0.67. Fisher’s exact test: p = 0.0076.