Table 3.: Different Cut Off Values for Determining Exudative Effusion

PC Sensibility Specificity PC/SC Sensibility Specificity
35 98.21% 85.71% 0.2 98.14% 42.85%
40 98.21% 85.71% 0.25 96.29% 42.85%
45 97.22% 85.71% 0.3 88.88% 42.85%
50 97.22% 85.71% 0.35 88.88% 57.14%
55 94.44% 100% 0.4 81.48% 57.14%
60 93.05% 100% 0.45 77.77% 57.14%
65 88.88% 100% 0.5 66.66% 71.42%
70 87.50% 100% 0.55 59.25% 85.71%

Legend: PC = pleural cholesterol; SC = serum cholesterol.