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Table 4 Subgroup analysis for sensitivity and specificity

From: Can cholesterol be used to distinguish pleural exudates from transudates? evidence from a bivariate meta-analysis

Covariate Sensitivity Coefficient Z P Specificity Coefficient Z P
Publication year 0.90 (95% CI 0.84-0.94) 2.19 0.84 0.40 0.97 (95% CI 0.92-0.99) 3.39 0.93 0.35
Method 0.88 (95% CI 0.83-0.92) 2.01 −0.20 0.84 0.96 (95% CI 0.92-0.98) 3.07 −0.10 0.92
Cut-off value 0.86 (95% CI 0.80-0.91) 1.85 −0.96 0.34 0.96 (95% CI 0.91-0.98) 3.08 −0.02 0.99
QUADAS score 0.89 (95% CI 0.84-0.93) 2.07 0.34 0.74 0.98 (95% CI 0.95-0.99) 3.77 3.15 0.00
Sample size 0.87 (95% CI 0.82-0.91) 1.92 −1.03 0.30 0.95 (95% CI 0.91-0.98) 3.02 −0.36 0.72
Prospective 0.90 (95% CI 0.85-0.93) 2.18 1.08 0.28 0.95 (95% CI 0.90-0.98) 2.95 −0.64 0.52
Design 0.90 (95% CI 0.86-0.93) 2.22 1.70 0.09 0.94 (95% CI 0.90-0.97) 2.81 −1.42 0.16
Consecutive 0.87 (95% CI 0.82-0.91) 1.90 −1.50 0.13 0.95 (95% CI 0.91-0.97) 2.87 −1.56 0.12
Blinding 0.88 (95% CI 0.80-0.93) 1.99 −0.16 0.88 0.98 (95% CI 0.95-0.99) 3.95 2.00 0.05