Table 2.
Clinical manifestations and laboratory findings after intubation.
| Successful extubation (n = 22) | Failed extubation (n = 81) | t/Z | p | |
|---|---|---|---|---|
| Vital signs | ||||
| Body temperature (°C) | 36.78 (0.86) | 36.89 (1.16) | −0.404 | 0.687 |
| SBP (mmHg) | 131.95 (25.85) | 106.00 (95.00, 131.00) | −2.930 | 0.003 |
| DBP (mmHg) | 75.50 (23.11) | 60.00 (46.00, 68.00) | −2.918 | 0.004 |
| Pulse pressure (mmHg) | 62.00 (31.00, 79.00) | 48 (40.00, 65.00) | −1.107 | 0.268 |
| MAP (mmHg) | 94.36 (20.42) | 75.00 (65.00, 86.00) | −3.200 | 0.001 |
| HR (bpm) | 98.73 (20.46) | 105.21 (25.29) | −1.107 | 0.271 |
| SPO2 (%) | 100.00 (99.00, 100.00) | 100.00 (98.00, 100.00) | −0.743 | 0.457 |
| Laboratory results | ||||
| White blood cell count (*109/L) | 11.42 (5.49) | 12.40 (8.50, 17.42) | −1.219 | 0.223 |
| Neutrophilic percentage (%) | 88.30 (81.45, 93.00) | 89.20 (81.60, 92.90) | −0.402 | 0.687 |
| Lymphocyte count (*109/L) | 0.75 (0.31, 1.08) | 0.70 (0.40, 1.47) | −0.109 | 0.913 |
| Hemoglobin concentration (g/L) | 97.18 (31.29) | 96.33 (25.83) | 0.130 | 0.896 |
| Platelet count (*109/L) | 188.00 (148.00, 231.00) | 158.22 (77.96) | −1.316 | 0.188 |
| CRP (mg/L) | 47.88 (19.84, 93.44) | 62.49 (22.63 28.60) | −0.978 | 0.328 |
| PCT (ng/L) | 2.36 (0.26, 3.97) | 1.0.52 (0.54, 4.56) | −0.089 | 0.929 |
| Albumin (g/L) | 31.63 (3.17) | 30.48 (4.20) | 1.194 | 0.235 |
| Total protein (g/L) | 58.91 (55.78, 63.40) | 57.16 (7.50) | −1.006 | 0.314 |
| ALT (U/L) | 30.00 (19.00, 42.00) | 19.00 (12.00, 56.00) | −0.539 | 0.590 |
| AST (U/L) | 49.00 (23.00, 59.00) | 39.00 (22.00, 123.00) | −0.394 | 0.693 |
| Scr ( mol/L) | 100.5 (76.00, 183.00) | 130.00 (95.00, 209.00) | −1.432 | 0.152 |
| BUN (mmol/L) | 12.52 (6.73, 19.01) | 16.69 (11.76, 27.39) | −2.567 | 0.010 |
| GFR (mL/min/1.73m2) | 56.75 (30.04) | 37.80 (20.30, 62.70) | −1.963 | 0.050 |
| Serum sodium (mmol/L) | 139.67 (5.29) | 144.43 (8.57) | −2.257 | 0.024 |
| Serum potassium (mmol/L) | 4.26 (3.60, 4.65) | 4.31 (3.94, 4.69) | −0.608 | 0.543 |
| BNP (pg/mL) | 519.00 (250.00, 776.00) | 360.00 (198.00, 705.00) | −0.933 | 0.351 |
HR, heart rate; SBP, systolic blood pressure; DBP, diastolic blood pressure; MAP, mean arterial pressure; WBC, white blood cell count; CRP, C-reactive protein; PCT, procalcitonin; ALT, alanine transaminase; AST, aspartate transaminase; Scr, serum creatinine; BUN, blood urea nitrogen; GFR, glomerular filtration rate; BNP, B-type natriuretic peptide.The bold values represent statistical differences in this measure.