Table 2.

Hemoglobin (Hb) variability by route of erythropoietin administration

Variable	Intravenous group (n = 38)	Subcutaneous group (n = 33)	p-value
Hb of >12, <9 g/dL (n/visit)	0.27 ± 0.12	0.36 ± 0.19	0.03
Hb excursion (≥1.5) (n/visit)	0.20 ± 0.08	0.17 ± 0.12	0.27
Standard deviation of Hb	0.97 ± 0.23	1.02 ± 0.28	0.43
Residual standard deviation of Hb	0.90 ± 0.23	0.97 ± 0.36	0.31
Coefficient of Hb variation	0.10 ± 0.02	0.11 ± 0.03	0.15
ESA responsiveness index (U/kg/week/g/dL)	10.9 ± 3.0	11.7 ± 4.8	0.61

Data expressed as mean ± standard deviation

ESA, erythropoiesis-stimulating agent.