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Table 3 Basic demographics of patients, symptoms, and pathology, microscopy and biochemistry results of pleural effusion of patients with nonspecific pleurisy

From: An update of the long-term outcome of patients with nonspecific pleurisy at medical thoracoscopy

  Benign disease course (n = 154) False-negative result (n = 19) p value
Patient demographics    
 Age, year (mean ± SD) 61.7 ± 15.0 62.3 ± 11.2 0.825
 Male sex (%) 66.7 42.1 0.037
 Smoking status (%) 48.1 42.1 0.621
Symptoms    
 Cough (%) 45.1 47.4 0.853
 Dyspnoea (%) 73.7 84.2 0.322
 Chest pain (%) 22.6 10.5 0.229
 Fever (%) 14.3 10.5 0.867
 Loss of weight (%) 6.0 10.5 0.458
 PE recurrence (%) 29.8 56.3 0.035
Macroscopic abnormalities found at thoracoscopy    
 Nodules (%) 18.8 41.2 0.034
 Plaques (%) 38.3 64.7 0.038
 Thick adhesions (%) 50/154 = 32.5 6/19 = 31.6 0.938
Biochemical parameters in pleural fluid    
 TP (mean ± SD) 44.5 ± 10.9 41.9 ± 6.3 0.337
 LDH (mean ± SD) 287.5 ± 270.0 205.1 ± 125.6 0.232
 PE TP/serum TP 0.67 ± 0.16 0.64 ± 0.11 0.598
 PE LDH/serum LDH 1.44 ± 1.09 1.03 ± 0.62 0.203
  1. The numbers in bold indicate the p values < 0.05, which mean the effects were considered significant
  2. LDH, lactate dehydrogenase; TP, total protein