Empyema n = 10

Empyema + NP n = 25

p-value

Medical and surgical management

IV β-lactamines

10/10 (100.0%)

25/25 (100.0%)

1

Duration (d)

12.5 [8 to 22]

12 [6 to 56]

0.69

Oral β-lactamines after IV treatment

10/10 (100.0%)

22/24 (91.7%)

1

Duration (d)

16 [7 to 30]

21 [9 to 45]

0.15

O₂ requirement

7/10 (70.0%)

10/25 (40.0%)

0.15

Duration (d)

10 [2 to 10]

8 [2 to 40]

0.59

Chest tube

10/10 (100.0%)

24/25 (96.0%)

1.00

Insertion delay after admission (d)

2 [1 to 15]

2 [0 to 8]

0.64

Duration (d)

7 [3 to 12]

5 [2 to 128]

0.67

Intrapleural urokinase

4/5 (80.0%)

3/13 (23.1%)

0.047

VATS

8/10 (80.0%)

21/25 (84.0%)

1.000

Outcomes

Fever duration (d)

15 [12 to 28]

14 [9 to 36]

0.73

Fever duration after admission (d)

10 [3 to 25]

9 [3 to 30]

0.74

ICU admission

6/10 (60.0%)

12/25 (48.0%)

0.71

ICU length of stay (d)

3 [1 to 5]

2 [1 to 33]

0.92

Hospital length of stay (d)

15 [9 to 42]

15 [8 to 140]

0.71

Delay of X-ray normalization (d)

288

126

0.28