| Empyema n = 10 | Empyema + NP n = 25 | p-value |
Blood at admisssion |
|
|
|
Hemoglobin (g/l) | 104 [100 to 130] | 102 [79 to 123] | 0.13 |
Platelets (G/l) | 328 [237 to 629] | 266 [143 to 999] | 0.08 |
WBC (G/l) | 18.3 [10.0 to 29.9] | 13.2 [0.6 to 33.8] | 0.22 |
WBC > 15 G/l | 6/9 (66.7%) | 10/24 (41.7%) | 0.26 |
CRP (mg/l) | 193 [138 to 200] | 200 [60 to 200] | 0.41 |
Pleural fluid |
|
|
|
WBC (G/l) | 66.5 [12.1 to 137.6] | 1.1 [0.03 to 72.0] | 0.0002 |
pH | 6.8 [6.8 to 7.0] | 7.5 [6.4 to 8.0] | 0.07 |
LDH (U/l) | 18040 [7128 to 31416] | 3138 [586 to 39525] | 0.002 |
LDH pleura/blood ratio | 63.0 [15.1 to 101.3] | 4.8 [2.6 to 19.5] | 0.0005 |
Glucose (mmol/l) | 0.8 [0.3 to 1.1] | 1.8 [0.3 to 4.8] | 0.08 |
Pathogens | 9/10 | 23/25 |
|
Streptococcus pneumoniae | 7/9 (77.8%) | 22/23 (95.7%) | 0.18 |
Other Streptococcus | 1/9 (11.1%) | 1/23 (4.3%) |
|
Staphylococcus aureus* | 1/9 (11.1%) | 0/0 (0.0%) |
|