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Table 2 Patient characteristics of three cohorts (n = 166)

From: Lower Hb at the initiation of dialysis does not adversely affect 1-year mortality rate

Variables Hb 8 8 < Hb 9.2 9.2 < Hb (g/dL) P value
  60 57 49  
Clinical findings
 Age (years) 60.6 ± 16.1 62.3 ± 12.4 61.7 ± 14.2 0.11
 Gender (male/female) 39/21 35/22 36/13 0.40
 DM/non DM 26/34 33/24 28/21 0.22
 CVD history (+/−) 18/42 7/50 12/37 0.064
 Method of HD initiation (AVF/catheter) 41/19 49/8 35/14 0.057  
Laboratory findings
 Hb (g/dL) at initiation 7.23 ± 0.84 8.69 ± 0.37 10.05 ± 0.63 0.00
 Hb (g/dL) at 6 months prior to initiation 9.48 ± 1.50 9.81 ± 1.07 9.84 ± 1.02 0.62
 Hb (g/dL) at 1 year after initiation 10.45 ± 1.04 10.61 ± 0.98 10.76 ± 0.90 0.66
 Creatinine (mg/dL) 11.6 ± 4.6 11.5 ± 4.7 10.1 ± 3.4 0.196
 eGFR (mL/m/1.73m2) 4.4 ± 1.8 4.2 ± 1.6 5.0 ± 2.4 0.196
 Cardiothoracic rate (CTR) at initiation (%) 56.3 ± 5.9 55.0 ± 5.0 52.8 ± 6.8 0.007
 CTR at 1 year after initiation (%) 48.5 ± 5.2 50.7 ± 5.1 48.6 ± 4.5 0.057
 Log BNP (ng/mL) 2.7 ± 0.6 2.7 ± 0.4 2.3 ± 0.6 0.069
Treatment
 ESA dosage (U/week; converted in Epo dosage) 4760 ± 3223 5231 ± 2803 4580 ± 3796 0.439
 Erythropoietin resistance index (ERI) 11.1 ± 8.4 10.1 ± 6.0 8.4 ± 7.4 0.21