Table 2 Laboratory results of patients within 24 h after admission
From: Predictors of mortality in COPD exacerbation cases presenting to the respiratory intensive care unit
Variables | Total (N = 384) | Survivors (n = 340) | Non-survivors (n = 44) | P value |
|---|---|---|---|---|
White blood cell count, × 109/L | 8.4 (3.8) | 8.2 (3.3) | 10.2 (6.3) | 0.043 |
< 4 | 21 (5.5%) | 16 (4.7%) | 5 (11.4%) | 0.002 |
4–10 | 269 (70.1%) | 248 (72.9%) | 21 (47.7%) | |
> 10 | 94 (24.5%) | 76 (22.4%) | 18 (40.9%) | |
Neutrophil count, × 109/L | 7.3 (7.8) | 7.1 (8.0) | 8.8 (6.4) | 0.187 |
Lymphocyte count, × 109/L | 1.05 (0.65) | 1.09 (0.60) | 0.84 (0.89) | 0.020 |
< 0.8 | 141 (37.2%) | 112 (33.4%) | 29 (65.9%) | < 0.001 |
≥ 0.8 | 243 (62.8%) | 228 (66.6%) | 15 (34.1%) | |
Platelet count, × 109/L | 187.2 (81.1) | 188.3 (79.0) | 178.7 (96.5) | 0.460 |
< 100 | 40 (10.4%) | 31 (9.1%) | 9 (20.5%) | 0.021 |
≥ 100 | 348 (89.6%) | 309 (90.9%) | 35 (79.5%) | |
NLR, % | 10.8 (17.3) | 9.6 (16.7) | 19.9 (19.5) | < 0.001 |
PLR, % | 253.1 (355.0) | 240.8 (357.0) | 362.4 (332.3) | 0.033 |
Eosinophil count, × 109/L | 0.12 (0.19) | 0.11 (0.14) | 0.15 (0.40) | 0.213 |
CRP, mg /L | 5.1 (7.0) | 4.7 (6.7) | 8.4 (8.6) | 0.002 |
Albumin, g/L | 35.2 (5.5) | 35.4 (5.4) | 33.5 (5.9) | 0.030 |
NT-proBNP, pg/ml | 1123.3 (2586.0) | 948.0 (2280.2) | 2474.3 (4066.3) | 0.039 |
D-dimers, ug/L | 726.6 (1075.8) | 676.5 (1018.4) | 1127.0 (1392.9) | 0.009 |
Creatinine, umol /L | 83.4 (63.1) | 81.0 (60.4) | 102.2 (79.6) | 0.099 |
Uric acid, umol /L | 260.5 (131.9) | 254.9 (126.0) | 304.1 (166.2) | 0.067 |
pH | 7.37 (0.07) | 7.37 (0.07) | 7.39 (0.06) | 0.186 |
PaO2, mmHg | 78.0 (25.9) | 77.9 (23.2) | 78.3 (41.4) | 0.960 |
PaCO2, mmHg | 52.8 (15.8) | 53.5 (16.1) | 47.7 (12.5) | 0.022 |
PaO2/FiO2, mmHg | 275.7 (85.5) | 277.59 (83.9) | 260.7 (96.7) | 0.225 |
Post-bronchodilator FEV1*, L | 0.94 (0.46) | 0.95 (0.46) | 0.82 (0.10) | 0.705 |
Post-bronchodilator FVC*, L | 1.95 (0.69) | 1.95 (0.70) | 1.77 (0.42) | 0.714 |
Post-bronchodilator FEV1/FVC*, % | 47.16 (12.39) | 47.13 (12.39) | 48.61 (17.19) | 0.869 |