Table 2.

Parameters of anemia in obese and non-obese hemodialysis patients

Variable	Non-obese	Obese	P value
Subject	567 (77.4)	166 (22.6)
Hb (g/dL)	10.2 ± 2.3	10.3 ± 2.4	0.999*
Patient with target Hb	155 (27.3)	42 (25.3)	0.785‡
Serum ferritin (μg/L)	429 (29–2,100)	368 (32–1,813)	0.268†
TSAT (%)	29 (7–63)	26 (11–51)	0.603†
Patients with adequate iron status	378 (66.7)	87 (52.4)	0.402‡
Dose of iron (mg/wk)	46 (0–125)	30 (0–125)	0.474†
ESA dose (unit/kg body weight/wk)	96 (12–354)	62 (21–164)	< 0.001†
ESA dose (unit/wk)	6,000 (1,000–12,000)	4,000 (2,000–1,400)	0.049†
Erythropoietin resistance index	8.0 (1–42.0)	4.3 (1.7–24.8)	< 0.001†

Data are presented as number (%), mean ± standard deviation, or median (range).

ESA, erythropoiesis-stimulating agent; Hb, hemoglobin; TSAT, transferrin saturation.

Analyzed by

^*Student t test,

^†Mann–Whitney U test,

^‡chi-square test.