Table 2.
Efficacy of outcome variables*
| Variable | IV-only group (n = 93) | IA-only group (n = 93) | Low-dose combined group (n = 95) | High-dose combined group (n = 95) | p Value |
|---|---|---|---|---|---|
| Total blood loss (mL) | 764 ± 217 | 633 ± 205 | 642 ± 242 | 564 ± 242 | < 0.001 |
| Hb drop (g/dL) | 2.9 ± 0.9 | 2.4 ± 0.8 | 2.3 ± 0.8 | 2.0 ± 0.8 | < 0.001 |
| Allogeneic transfusion | 0 | 0 | 0 | 0 | NA |
| Patients with Hb < 7.0 g/dL | 0 | 0 | 0 | 0 | NA |
| Patients with Hb < 8.0 g/dL | 1 (1%) | 2 (2%) | 0 | 0 | 0.288 |
| Patients with Hb < 9.0 g/dL | 8 (9%) | 6 (7%) | 3 (3%) | 5 (5%) | 0.449 |
*Data presented as means ± SD or number of patients (%); #calculated using ANOVA for continuous variables (total blood loss, blood loss via drain, Hb drop) and chi-square test for categorical variables (patients with Hb < 8.0 g/dL or < 9.0 g/dL); IV = intravenous, IA = intraarticular, Hb = hemoglobin, NA = not applicable.