a borderline significant trendp = 0.01
1 Mean difference −0.62 × 10 − 3 (95% CI −1.25 to 0.01) × 10 − 3 , p = 0.06, indicating a borderline significant trend favoring darbepoetin; Fig. 2 Mean difference −0.83 × 10 − 3 (95% CI −1.46 to −0.19) × 10 − 3 , p = 0.01, demonstrating a statistically significant advantage for darbepoetin Fig. 3 Mean difference −1.45 × 10 − 3 (95% CI −2.06 to −0.83) × 10 − 3 , p < 0.00001, indicating a highly significant superiority of darbepoetin Collectively, these findings suggest that, under most study conditions, darbepoetin is likely to be more effective than short-acting epoetin in achieving or maintaining target hemoglobin concentrations.