Table 3 Postoperative blood transfusion for patients with abnormal hemoglobin after TKA Surgery
From: The role of routine laboratory tests after unilateral total knee arthroplasty
Factor | Treatment Group (n = 58) | No Treatment Group (n = 626) | P value |
|---|---|---|---|
Age (years) | 74.45 ± 4.86 | 66.55 ± 10.86 | 0.001 |
Sex (n) | 0.067 | ||
Male | 20 | 148 | |
Female | 38 | 478 | |
BMI (kg/m2) | 22.37 ± 3.40 | 24.40 ± 4.02 | 0.495 |
Smoking: n(%) | 19(32.8%) | 15(2.4) | 0.137 |
Alcohol use: n(%) | 28(48.3) | 252(40.3) | 0.235 |
Diabetes mellitus:n(%) | 5(8.6%) | 71(11.3%) | 0.504 |
High blood pressure: n(%) | 23(39.75) | 234 (37.4) | 0.732 |
Preoperative hb level (g/L) | 103.91 ± 4.34 | 125.05 ± 11.05 | < 0.001 |
Estimated blood loss (mL) | 426.88 ± 306.54 | 194.49 ± 147.62 | < 0.001 |
Operative time (minutes) | 170.90 ± 49.43 | 137.10 ± 41.32 | 0.013 |