Table 3.
Total blood loss comparisons
| Variable | IV-only group | IA-only group | Low-dose combined group | High-dose combined group | p Value* |
|---|---|---|---|---|---|
| Total blood loss (mL)† | 764 ± 217 | 633 ± 205 | 642 ± 242 | 564 ± 242 | < 0.001 |
| Post hoc test‡ | |||||
| IV only | −131 (47–214; p < 0.001) | −121 (−205 to −38; p = 0.001) | −199 (−283 to −116; p < 0.001) | ||
| IA only | 131 (47–214; p < 0.001) | 9 (−74 to 93; p = 0.992) | −69 (−152 to 15; p = 0.146) | ||
| Low-dose combined | 121 (38–205; p = 0.001) | −9 (−92 to 74; p = 0.992) | −78 (−161 to 5; p = 0.073) | ||
| High-dose combined | 199 (116–283; p < 0.001) | 69 (−15 to 152; p = 0.146) | 78 (−5 to 161; p = 0.073) |
*Using ANOVA for comparison among groups; †values are expressed as mean ± SD; ‡values are expressed as mean difference (95% CI; p value) using Tukey’s Honestly Significant Difference test; IV = intravenous, IA = intraarticular.