Overall (n = 10,431) | VAP group (n = 212) | Non-VAP group (n = 10,219) | p value | |
---|---|---|---|---|
Age(years), median(IQR) | 66.3 (53.1–76.0) | 66.3 (52.1–77.8) | 66.3 (53.1–76.0) | 0.387 |
Gender, n(%) | 0.107 | |||
Male | 5937 (56.9) | 109 (51.4) | 5828 (57.0) | |
Female | 4494 (43.1) | 103 (48.6) | 4391 (43.0) | |
Admission source, n(%) | < 0.001 | |||
MICU | 4089 (39.2) | 154 (72.6) | 3935 (38.5) | |
Other ICU | 6342 (60.8) | 58 (27.4) | 6284 (61.5) | |
Admission type, n(%) | < 0.001 | |||
Emergency | 9504 (91.1) | 211 (99.5) | 9293 (90.9) | |
Elective | 927 (8.9) | 1 (0.5) | 926 (9.1) | |
Reintubation, n(%) | 3294 (31.6%) | 65 (30.7%) | 3229 (30.6%) | 0.823 |
Pre-existing Diseases, n(%) | ||||
COPD | 101 (1.0%) | 2 (0.9%) | 99 (1.0) | 1.0 |
Diabetes | 2698 (25.9) | 60 (28.3) | 2638 (25.8) | 0.428 |
Hypertension | 4943 (47.4) | 80 (37.7) | 4863 (47.6) | 0.004 |
Solid tumor | 313 (3.0) | 8 (3.8) | 305 (3.0) | 0.537 |
Metastatic tumor | 418 (4.0) | 5 (2.4) | 413 (4.0) | 0.286 |
Renal failure | 1721 (16.5) | 26 (12.3) | 1695 (16.6) | 0.111 |
Liver failure | 1653 (15.9) | 22 (10.4) | 1631 (16.0) | 0.028 |
PaO2/FiO2, median(IQR) | 240.0 (178.5–315.4) | 194.17 (150.0–256.5) | 241.0 (179.4–316.7) | < 0.001 |
WBC(K/uL), median(IQR) | 12.8 (9.2–17.7) | 13.2 (9.8–18.0) | 12.8 (9.2–17.7) | 0.121 |
Body temperature(℃), median(IQR) | 37.8 (37.3–38.4) | 37.9 (37.3–38.6) | 37.8 (37.3–38.4) | 0.255 |
APACHE III score, median(IQR) | 50.0 (37.0–66.0) | 53.0 (40.75–64.0) | 50.0 (37.0–66.0) | 0.031 |
HR | 5.0 (0.0–7.0) | 5.0 (0.0–7.0) | 5.0 (0.0–7.0) | 0.028 |
MAP | 15.0 (7.0–15.0) | 15.0 (7.0–15.0) | 15.0 (7.0–15.0) | 0.197 |
Temperature | 0.0 (0.0–2.0) | 0.0 (0.0–2.0) | 0.0 (0.0–2.0) | < 0.001 |
RR | 6.0 (0.0–6.0) | 6.0 (0.0–9.0) | 6.0 (0.0–6.0) | 0.001 |
A-aDO2/PaO2 | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | < 0.001 |
Hematocrit | 3.0 (3.0–3.0) | 3.0 (3.0–3.0) | 3.0 (3.0–3.0) | 0.269 |
WBC | 0.0 (0.0–1.0) | 0.0 (0.0–1.0) | 0.0 (0.0–1.0) | 0.083 |
Creatinine | 0.0 (0.0–7.0) | 0.0 (0.0–7.0) | 0.0 (0.0–7.0) | 0.484 |
UO | 5.0 (0.0–7.0) | 5.0 (0.0–7.0) | 5.0 (0.0–7.0) | 0.013 |
BUN | 7.0 (2.0–11.0) | 7.0 (2.0–11.0) | 7.0 (2.0–11.0) | 0.094 |
Sodium | 0.0 (0.0–2.0) | 0.0 (0.0–2.0) | 0.0 (0.0–2.0) | 0.016 |
ALB | 0.0 (0.0–6.0) | 0.0 (0.0–6.0) | 0.0 (0.0–6.0) | 0.087 |
Bilirubin | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.008 |
Glucose | 0.0 (0.0–3.0) | 3.0 (0.0–3.0) | 0.0 (0.0–3.0) | 0.017 |
Acid–base | 3.0 (1.0–6.0) | 3.0 (1.0–5.0) | 3.0 (1.0–6.0) | 0.077 |
GCS | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.017 |
SOFA score, median(IQR) | 6.0 (4.0–9.0) | 6.0 (4.0–8.0) | 6.0 (4.0–9.0) | 0.034 |
Respiration | 3.0 (0.0–3.0) | 3.0 (2.0–3.0) | 3.0 (0.0–3.0) | 0.014 |
Coagulation | 0.0 (0.0–1.0) | 0.0 (0.0–1.0) | 0.0 (0.0–1.0) | < 0.001 |
Liver | 0.0 (0.0–1.0) | 0.0 (0.0–0.0) | 0.0 (0.0–1.0) | 0.004 |
Cardiovascular | 1.0 (1.0–3.0) | 1.0 (1.0–3.0) | 1.0 (1.0–3.0) | 0.022 |
CNS | 0.0 (0.0–1.0) | 0.0 (0.0–0.0) | 0.0 (0.0–1.0) | 0.008 |
Renal | 1.0 (0.0–2.0) | 1.0 (0.0–2.0) | 1.0 (0.0–2.0) | 0.471 |
Coma adm, n(%) | 6 (0.1%) | 0 (0.0%) | 6 (0.1%) | 1.0 |
Aspiration adm, n(%) | 32 (0.3%) | 4 (1.9%) | 28 (0.3%) | 0.004 |
Sepsis adm, n(%) | 548 (5.3%) | 10 (4.7%) | 538 (5.3%) | 0.876 |
Bacteremia adm, n(%) | 11 (0.1%) | 0 (0.0%) | 11 (0.1%) | 1.0 |
Trauma adm, n(%) | 202 (1.9%) | 0 (0.0%) | 202 (2.0%) | 0.037 |
Polytrauma adm, n(%) | 45 (0.4%) | 0 (0.0%) | 45 (0.4%) | 1.0 |
Fracture adm, n(%) | 27 (0.3%) | 0 (0.0%) | 27 (0.3%) | 1.0 |
Pneumothorax adm, n(%) | 19 (0.2%) | 0 (0.0%) | 19 (0.2%) | 1.0 |