Table 2.
Descriptive data of patients and comparison with blood transfusion
| Variables | Blood Transfusion | p a | ||
|---|---|---|---|---|
| Yes n(%) = 136 |
No n(%) = 935 |
Total n(%) = 1071 |
||
|
Age, years Median (IQR) |
69 (61–78) | 66 (52.5–76) | 68.0 (55–77) | < 0.009 b |
| Gender, Male | 85 (62.5) | 499 (53.4) | 584 (54.5) | 0.046 |
| Hemoglobin (g/dL) | < 0.001 c | |||
| Mean ± SD | 8.94 ± 1.58 | 11.91 ± 2.20 | 11.50 ± 2.35 | |
| Hematocrit (%) | < 0.001 c | |||
| Mean ± SD | 26.26 ± 4.45 | 34.90 ± 6.05 | 33.81 ± 6.67 | |
| PT, INR | < 0.001 b | |||
| Median (IQR) | 1.2 (1.1–1.4) | 1.1 (1-1.2) | 1.1 (1-1.3) | |
| aPTT, sec | 0.041 b | |||
| Median (IQR) | 31.1 (27.8–34.9) | 29.9 (26.3–33.6) | 30.1 (26.7–33.6) | |
| Serum Calcium (mg/dL) | < 0.001 b | |||
| Median (IQR) | 8.2 (7.6–8.8) | 9 (8.5–9.4) | 8.9 (8.3–9.3) | |
| Blood Gas | ||||
| pH | 0.774b | |||
| Median (IQR) | 7.40 (7.35–7.44) | 7.38 (7.35–7.43) | 7.39 (7.35–7.43) | |
| Lactate (mg/dL) | 0.295b | |||
| Median (IQR) | 1.8 (1.2–2.7) | 1.6 (1.1–2.4) | 1.5 (1.1–2.3) | |
| Ionized Calcium (mmol/L) | < 0.001 b | |||
| Median (IQR) | 1.01 (0.94–1.10) | 1.12 (1.04–1.19) | 1.1 (1.02–1.17) | |
|
Severe hypocalcemia (iCa < 0.9 mmol/L) |
22 (16.2) | 78 (8.3) | 100 (9.3) | 0.003 |
|
Mild hypocalcemia (iCa < 1.12 mmol/L) |
88 (64.7) | 405 (43.3) | 493 (46) | < 0.001 |
|
Normocalcemia (iCa ≥ 1.12 mmol/L) |
26 (19.1) | 452 (48.3) | 478 (44.7) | < 0.001 |
|
ISS 9–15 (Moderate) > 15 (Severe) |
117 (86) 19 (14) |
804 (86) 131 (14) |
921 (86) 150 (14) |
0.557 |
IQR: Interquantile Range, SD: Standard Deviation, PT: Prothrombin Time, aPTT: Activated Partial Thromboplastin Time
a: Pearson Chi Square test
b: Mann-Whitney U test
c: Student-t test