Table 1 Demographic and clinical characteristics of the patients in the ETA group and BALF group
ETA Group (n = 53) | BALF Group (n = 106) | P value | |
|---|---|---|---|
Age (years), mean ± sd | 66.12 ± 15.98 | 65.42 ± 16.49 | 0.150 |
Gender (female), n (%) | 14 (26) | 28 (26) | 1 |
Type of pneumonia (HAP), n (%) | 41 (87.4) | 82 (87.4) | 1 |
APACHE II score, mean ± sd | 16.30 ± 3.36 | 16.90 + 2.98 | 0.372 |
PSI, n (%) | |||
Grade III | 13 (24.5) | 26 (24.5) | 1 |
Grade IV | 39 (73.6) | 78 (73.6) | 1 |
Grade V | 1 (1.9) | 2 (1.9) | 1 |
Primary disease, n (%) | |||
Disease of cardiovascular system | 25 (47.2) | 50 (47.2) | 1 |
Autoimmune diseases | 12 (22.6) | 24 (22.6) | 1 |
Diabetes | 12 (22.6) | 24 (22.6) | 1 |
Diseases of urinary system | 11 (20.8) | 22 (20.8) | 1 |
Nervous system diseases | 8 (15.1) | 16 (15.1) | 1 |
Disease of respiratory system | 3 (5.7) | 6 (5.7) | 1 |
Tumor | 5 (9.4) | 10 (9.4) | 1 |
Others | 3 (5.7) | 6 (5.7) | 1 |
None | 3 (5.7) | 6 (5.7) | 1 |
Time from diagnosis of severe pneumonia to ICU admission (h), median (IQR) | 20 (10.25, 35) | 22.5 (13.25, 35.75) | 0.499 |
Time from ICU admission to specimen submission (h), median (IQR) | 9.5 (4, 13) | 14 (5, 19) | 0.400 |
Time from specimen submission to the intervention (h) | 22.5 (19.5, 26) | 23 (19, 26.5) | 0.379 |
Laboratory examinationa | |||
White blood cell count (× 109/L), mean ± sd | 12.47 ± 6.31 | 11.94 ± 6.71 | 0.709 |
Neutrophils (%), mean ± sd | 86.38 ± 7.27 | 87.80 ± 7.87 | 0.420 |
CRP (mg/L), median (IQR) | 87.83 (49.83, 180.86) | 85.64 (60.12, 117.37) | 0.899 |
PCT (ng/mL), median (IQR) | 1.31 (0.208, 7.62) | 1.223 (0.314, 6.2) | 0.785 |