Table 4 Factors associated with high ERI variability

Sex

 Male

45.2

66.3

 Female

54.8

33.7

Age, years

75.1 ± 9.9

66.1 ± 13.6

0.0003

BMI, kg/m²

19.7 ± 3.1

22.2 ± 3.5

0.0001

HD vintage, months

62.9 ± 87.4

65.6 ± 74.1

0.8531

Kt/V

1.5 ± 0.3

1.4 ± 0.3

0.1084

History of CVD

9.7

11.3

0.783

Systolic BP, mmHg

150.7 ± 22.3

149.5 ± 22.5

0.7784

Diastolic BP, mmHg

76.5 ± 12.1

78.2 ± 14.1

0.5215

Iron dosage, mg

585.8 ± 590.8

884.4 ± 689.0

0.0200

Laboratory data

 Hb, g/dl

9.7 ± 1.0

10.9 ± 1.1

<0.0001

 Ferritin, ng/ml

134.8 ± 101.8

85.6 ± 84.2

0.0023

 Albumin, g/dl

3.5 ± 0.4

3.7 ± 0.3

0.0083

 CRP, mg/dl

1.2 ± 1.7

0.6 ± 1.5

0.0281

 Intact PTH, pg/ml

116.8 ± 87.5

155.2 ± 169.5

0.2213

 Phosphorus, mg/dl

5.2 ± 1.6

5.3 ± 1.3

0.8339

 Calcium, mg/dl

8.5 ± 0.8

8.7 ± 0.7

0.3027

 ALP, U/l

249.8 ± 137.2

245.1 ± 95.7

0.8038

 TSAT, %

20.8 ± 11.4

22.0 ± 11.3

0.5858