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Characteristics of the ultrasonograph in 2 groups.
| Characteristics | Exudates (n = 275, %) | Transudates (n = 307, %) | P value |
|---|---|---|---|
| TUS images characteristics | 0.000* | ||
| Anechoic | 110, 40 | 306, 99.7 | |
| Complex septated | 19, 6.9 | 0, 0.0 | |
| Complex nonseptated | 100, 36.4 | 0, 0.0 | |
| Complex homogenous | 46, 16.7 | 1, 0.3 | |
| Pleural thickness | 0.000* | ||
| ≤3 mm | 170, 61.8 | 301, 98.0 | |
| >3 mm | 105, 38.2 | 6, 2.0 |
TUS = thoracic ultrasonography.
