Malignant pleural effusion (n = 21) | Benign pleural effusion (n = 60) | P-value | |
---|---|---|---|
Age, years | 68.0 (59.0–81.0) | 58.0 (35.5–73.5) | 0.016 |
Male sex | 14 (66.7) | 41 (68.3) | 0.888 |
Diagnosis of MPE | |||
Lung cancer | |||
Adenocarcinoma | 10 | ||
Squamous cell carcinoma | 7 | ||
Small cell carcinoma | 2 | ||
Breast cancer | 1 | ||
Cholangiocarcinoma | 1 | ||
Diagnosis of BPE | |||
Pleural tuberculosis | 37 | ||
Parapneumonic effusion | 23 | ||
Pleural fluid findings | |||
Specific gravity | 1.020 (1.015–1.020) | 1.020 (1.015–1.020) | 1.000 |
pH | 7.5 (7.5–7.5) | 7.5 (7.5–7.5) | 0.870 |
WBC, /μl | 450.0 (288.0–710.0) | 1169.0 (397.5–2124.0) | 0.003 |
Neutrophil, % | 30.0 (20.0–40.0) | 30.0 (20.0–54.0) | 0.521 |
Lymphocyte, % | 70.0 (60.0–80.0) | 70.0 (46.0–80.0) | 0.521 |
Glucose, mg/dL | 114.0 (106.5–151.0) | 95.5 (69.3–139.3) | 0.037 |
Protein, g/dL | 4.2 (3.7–5.0) | 4.6 (2.9–5.4) | 0.845 |
Albumin, g/dL | 2.3 (2.0–2.9) | 2.4 (1.6–2.7) | 0.551 |
LDH, IU/L | 417.0 (235.5–548.0) | 447.0 (211.0–881.0) | 0.552 |
ADA, IU/L | 17.0 (14.0–24.0) | 83.0 (17.8–109.2) | 0.001 |
Pro-cathepsin D | |||
Plasma, pg/mL | 0.469 (0.421–0.554) | 0.455 (0.405–0.549) | 0.528 |
Pleural fluid, pg/mL | 0.651 (0.601–0.716) | 0.590 (0.511–0.692) | 0.034 |