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Table 4: Diagnostic test evaluation for the diagnosis of transudate vs exudate by ultrasound. |
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Light’s criteria |
Total n (%) |
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Transudate n (%) |
Exudate n (%) |
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Ultrasound Transudate Exudate Total |
13 (81.2) 3 (18.7) 16 (100.0) |
2 (20.0) 8 (80.0) 10 (100.0) |
15 (57.7) 11 (42.3) 26 (100.0) |
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Diagnostic test evaluation Sensitivity Specificity PPV NPV LR + LR - Accuracy |
81.25% 80.00% 86.66% 72.73% 4.06 0.23 80.77 |
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PPV = positive predictive value. NPV = negative predictive value. LR = likelihood ratio. |
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