Table 2.
Laboratory tests on the day of admission of the children with CAP in the training set.
| Variable(s) | Survival | Death | Z/χ2/t | P value |
|---|---|---|---|---|
| Patients (n) | 263 | 33 | ||
| Random BG and blood gas analysis | ||||
| BG (mmol/L) | 5.6 (5.0–6.6) | 6.1 (5.2–7.3) | −1.150 | .250 |
| pH | 7.39 (7.34–7.43) | 7.38 (7.315–7.41) | −1.432 | .152 |
| PO2 (mm Hg) | 69.0 (54.0–102.0) | 65.0 (50.5–92.5) | −0.866 | .386 |
| PCO2 (mm Hg) | 39.0 (33.0–47.0) | 39.0 (30.7–45.7) | −0.348 | .727 |
| HCO3(−) (mmol/L) | 22.9 (20.0–26.0) | 20.8 (16.4–24.8) | −2.251 | .024 |
| ABE (mmol/L) | −1.6 (−4.2 to 1.6) | −3.4 (−8.0 to 0.5) | −2.454 | .014 |
| Lac (mmol/L) | 1.5 (0.9–2.4) | 2.1 (1.3–3.3) | −1.950 | .051 |
| Blood routine examination and infection indicators | ||||
| WBC (10^9/L) | 8.64 (5.79–12.63) | 6.57 (3.70–14.49) | −0.885 | .376 |
| NE (10^9/L) | 4.22 (2.20–7.90) | 4.71 (1.82–8.47) | −0.206 | .837 |
| LYM (10^9/L) | 2.65 (1.40–4.21) | 1.65 (0.85–4.06) | −2.008 | .045 |
| RBC (10^12/L) | 3.96 ± 0.77 | 3.78 ± 0.61 | 1.266 | .207 |
| Hb (g/L) | 110.0 (96.0–121.0) | 98.0 (87.0–113.5) | −2.347 | .019 |
| PLT (10^9/L) | 323.0 (229.0–421.0) | 201.0 (76.5–358.5) | −2.804 | .005 |
| hsCRP (mg/L) | 7.86 (1.51–30.00) | 24.20 (9.47–47.65) | −2.733 | .006 |
| PCT (ng/mL) | 0.25 (0.10–1.34) | 1.26 (0.50–8.89) | −4.269 | <.001 |
| Biochemical indicators and coagulation function | ||||
| ALT (U/L) | 21 (15–37) | 33 (16–96) | −1.905 | .057 |
| AST (U/L) | 41.0 (30.0–61.0) | 97.0 (50.0–217.5) | −4.620 | <.001 |
| TP (g/L) | 59.9 ± 8.1 | 56.8 ± 7.9 | 2.091 | .037 |
| ALB (g/L) | 40.7 (35.9–44.2) | 35.8 (27.4–40.3) | −4.023 | <.001 |
| TB (μmol/L) | 6.7 (4.8–11.7) | 10.9 (6.8–17.1) | −2.625 | .009 |
| DB (μmol/L) | 3.1 (2.1–4.9) | 4.1 (2.4–7.1) | −1.762 | .078 |
| Scr (μmol/L) | 22.6 (19.0–29.3) | 29.8 (23.1–41.8) | −3.563 | <.001 |
| BUN (mmol/L) | 3.2 (2.3–4.3) | 4.5 (2.8–7.9) | −2.698 | .007 |
| Na (mmol/L) | 138.4 (136.0–140.0) | 137.3 (133.6–140.1) | −1.377 | .169 |
| K (mmol/L) | 4.58 (4.06–5.08) | 4.20 (4.00–4.84) | −1.451 | .147 |
| CL (mmol/L) | 101.0 (98.4–103.7) | 101.5 (98.7–105.6) | −0.911 | .363 |
| LDH (U/L) | 353 (280–523) | 692 (461–1166) | −4.761 | <.001 |
| CK-MB (U/L) | 34.0 (26.0–59.0) | 40.0 (20.5–65.5) | −0.079 | .937 |
| PT (s) | 11.7 (11.0–13.0) | 12.7 (11.4–14.7) | −2.659 | .008 |
| APTT (s) | 32.1 (27.2–38.4) | 39.0 (32.8–52.7) | −4.426 | <.001 |
| Fib (g/L) | 2.6 (1.9–3.7) | 2.2 (1.5–2.9) | −2.636 | .008 |
ABE = actual bicarbonate, ALB = albumin, ALT = alanine aminotransferase, APTT = activated partial thromboplastin time, AST = aspartate aminotransferase, BG = blood glucose, BUN = blood urea nitrogen, CAP = community-acquired pneumonia, CK-MB = creatine kinase-MB, CL = chloride ions, DB = direct bilirubin, Fib = fibrinogen, Hb = hemoglobin, hsCRP = high-sensitivity C-reactive protein, K = potassium ions, Lac = lactic acid, LDH = lactate dehydrogenase, LYM = lymphocytes, Na = sodium ions, NE = neutrophils, PCO2 = carbon dioxide pressure, PCT = procalcitonin, PLT = platelets, PO2 = oxygen pressure, PT = prothrombin time, RBC = red blood cells, Scr = serum creatinine, TB = total bilirubin, TP = total protein, WBC = white blood cells.