| Parameter | No TUS cohort(n = 30) | TUS cohort(n = 30) | OR (95% CI) | P Value |
| Mean±SE age (years) | 72±1.9 | 74±1.9 | N/A | 0.42 |
| Sex (M:F) (%) | 21:9 (70:30) | 23:7 (77:23) | 0.71 (0.22 to 2.25) | 0.77 |
| Failed access | 5 (16.7%) | 0 (0%) | 13.2 (0.69 to 250) | 0.05 |
| Septation at MT | 8 (26.7%) | 8 (26.7%) | 1.00 (0.32 to 3.14) | 1.00 |
| Septation noted on imaging | 1/8 (12.5%) | 8/8 (100%) | 85.0 (2.99 to 2420) | 0.001 |
| Pleurodesis not done | 11 (36.7%) | 12 (40%) | 0.87 (0.31 to 2.46) | 1.00 |
MT, medical thoracoscopy; TUS, thoracic ultrasound.