Table 4.
Hemoglobin drop comparisons
| Variable | IV-only group | IA-only group | Low-dose combined group | High-dose combined group | p Value* |
|---|---|---|---|---|---|
| Hb drop (g/dL)† | 2.9 ± 0.9 | 2.4 ± 0.8 | 2.3 ± 0.8 | 2.0 ± 0.8 | < 0.001 |
| Post hoc test‡ | |||||
| IV-only | −0.5 (−0.8 to −0.2; p < 0.001) | −0.5 (−0.9 to −0.2; p < 0.001) | −0.9 (−1.2 to −0.5; p < 0.001) | ||
| IA-only | 0.5 (0.2–0.8; p < 0.001) | 0 (−0.3 to 0.3; p = 0.999) | −0.3 (−0.6 to 0; p = 0.033) | ||
| Low-dose combined | 0.5 (0.2–0.9; p < 0.001) | 0 (−0.3 to 0.3; p = 0.999) | −0.3 (−0.6 to 0; p = 0.047) | ||
| High-dose combined | 0.9 (0.5–1.2; p < 0.001 | 0.3 (0–0.6; p = 0.033) | 0.3 (0–0.6; p = 0.047) | ||
*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.