Table 1 Baseline characteristics of the non-IHCA cohort and the IHCA cohort
From: Development of early prediction model of in-hospital cardiac arrest based on laboratory parameters
Characteristic mean (SD) or N (%) | Non-IHCA (n = 5983) | IHCA (n = 1796) | P value |
|---|---|---|---|
Age, years | 63 (51–73) | 80 (65–87.25) | < 0.001 |
Gender = male | 3813(63.73) | 1162 (64.70) | 0.453 |
BMI, kg/m2 | 24 (21–27) | 22 (19–25) | < 0.001 |
Smoking | 1691 (28.26) | 416 (23.16) | < 0.001 |
Drinking | 1610 (26.91) | 342 (19.04) | < 0.001 |
Complications | |||
 Hypertension | 2324 (38.84) | 872 (48.55) | < 0.001 |
 Diabetes | 1266 (21.16) | 464 (25.84) | < 0.001 |
Laboratory results | |||
 d-Dimer, ug/ml | 1.18 (0.44–2.99) | 3.51 (2.03–7.11) | < 0.001 |
Sodium, mmol/l | 140.4 (137.6–142.6) | 142.2 (136.8–148.8) | < 0.001 |
White blood cell count, 109/l | 7.23 (5.41–10.27) | 11.9 (7.34–17.71) | < 0.001 |
Direct bilirubin, umol/l | 3.9 (2.6–6.62) | 10.8 (5–34.4) | < 0.001 |
PT, s | 14 (13.2–15.3) | 19.1 (16.1–24.4) | < 0.001 |
PTA, % | 86 (73–97) | 50 (35–67) | < 0.001 |
TT, s | 15.9 (15–16.9) | 17.1 (15.5–20.55) | < 0.001 |
Phosphorous, mmol/l | 1.07 (0.89–1.25) | 1.19 (0.83–1.72) | < 0.001 |
Creatinine, umol/l | 75.9 (60.9–97.2) | 132.2 (75.7–230.3) | < 0.001 |
Lumbar disc herniation, U/l | 191.5 (152.78–294.3) | 391.35 (250.88–741.48) | < 0.001 |
Alanine aminotransferase, U/l | 17.7 (11.1–32.9) | 20.65 (9.3–56.98) | < 0.001 |
Potassium, mmol/l | 3.92 (3.64–4.23) | 4.28 (3.81–4.85) | < 0.001 |
NT-proBNP, pg/ml | 414.25 (114.2–1797.75) | 5006 (1462.75–12,468.25) | < 0.001 |
Magnesium, mmol/l | 0.86 (0.79–0.92) | 0.88 (0.75–1) | < 0.001 |
Glucose, mmol/l | 6.06 (4.94–8.15) | 8.56 (6.47–12.07) | < 0.001 |
Platelets, 109/l | 198 (151–255) | 92 (40–167) | < 0.001 |
Amylase, U/l | 53.6 (37.7–79.18) | 71.2 (38.98–136.5) | < 0.001 |
Hemoglobin, g/l | 119 (98–136) | 87 (73–104) | < 0.001 |
Calcium, mmol/l | 2.17 (2.05–2.26) | 2.05 (1.88–2.18) | < 0.001 |
APTT, s | 37.9 (34.2–42.9) | 49.4 (42–62.08) | < 0.001 |
Hematocrit, L/l | 0.35 (0.29–0.4) | 0.26 (0.22–0.32) | < 0.001 |
Fibrinogen, g/l | 3.54 (2.84–4.6) | 2.92 (1.9–4.18) | < 0.001 |
Neutrophils | 0.72 (0.61–0.86) | 0.88 (0.8–0.93) | < 0.001 |
Total protein, g/l | 64.4 (58.3–69.5) | 57.1 (51.1–63.3) | < 0.001 |
Troponin T, ng/ml) | 0.02 (0.01–0.13) | 0.11 (0.05–0.28) | 0.009 |
Serum uric acid, umol/l | 302.1 (230.6–388.48) | 387.9 (249.55–562.35) | 0.001 |
Chloride, mmol/l | 103.1 (100.1–105.9) | 102.4 (97–108.7) | 0.001 |
Serum albumin, g/l | 37 (32.2–40.6) | 31 (27.4–34.7) | < 0.001 |
Aspartate aminotransferase, U/l | 20.1 (14.4–39) | 42.95 (21–125.45) | < 0.001 |
CRP, mg/dl | 1.31 (0.21–5.7) | 6.77 (3.03–12.13) | < 0.001 |