Table 3 Multiple linear regression analysis on influential factors of HBL after THA
From: Hidden blood loss and its influential factors after total hip arthroplasty
Variables | Coefficients | P values |
|---|---|---|
Constant | −807.9 | 0.000* |
Quantitative variable | ||
Age (y) | −1.2 | 0.012* |
BMI (kg/m2) | 3.2 | 0.020* |
PT (s) | −0.4 | 0.881 |
Blood transfusion (mL) | 0.3 | 0.000* |
Operation time (m) | −0.1 | 0.613 |
Length of incision (cm) | 69.9 | 0.000* |
Change of HCT | 11.6 | 0.000* |
Qualitative variables | ||
Gender | 22.4 | 0.033* |
Hypertension | −10.8 | 0.247 |
Anesthesia method | −9.5 | 0.336 |
Prosthetic type | 16.5 | 0.182 |
Anticoagulants | ||
LMWH (2,050 iu/day) | 28.6 | 0.165 |
LMWH (4,100 iu/day) | −15.2 | 0.291 |
Hemorheologic agent | ||
Qiong Danshen injection triazine | −5.9 | 0.552 |
Cinepazide | −5.2 | 0.772 |
Diagnosis | ||
Hip osteoarthritis | −3.8 | 0.827 |
ANFH | −16.9 | 0.191 |
RA | −66.2 | 0.241 |
DDH | −38.2 | 0.030* |