Table 2. Diagnostic performance of predictors for identifying lymphoma-associated malignant pleural effusion.

Parameters	L-MPE (n=17)	TPE (n=216)	Sensitivity, %	Specificity, %	PPV, %	NPV, %	AUC
Fever	2	104	12 [2–38]	52 [45–59]	2 [0–7]	88 [81–93]	0.68 [0.57–0.79]
S-LDH >460 IU/L	13	41	76 [50–92]	81 [75–86]	24 [14–38]	98 [94–99]	0.79 [0.67–0.91]
No fever and S-LDH >460 U/L	11	24	65 [39–85]	89 [84–93]	31 [17–49]	97 [93–99]	0.77 [0.63–0.91]
Fever and S-LDH ≤460 U/L	0	87	0 [0–23]	60 [53–66]	0 [0–5]	88 [82–93]	0.70 [0.61–0.80]

Data are shown as number or % [95% CI]. L-MPE, lymphoma-associated malignant pleural effusion; TPE, tuberculous pleural effusion; PPV, positive predictive value; NPV, negative predictive value; AUC, area under the curve; S-LDH, serum lactate dehydrogenase.