Table 3 Univariate linear regression analysis for the factors associated with Hb level

Age, years

.036

−0.002

.010

.195

Male

.047

−0.023

.320

.089

Diabetes

.059

.014

.343

.033

BMI

.018

−0.024

.012

.524

Duration of nephrologist care

.013

.000

.000

.655

Vascular access

.151

.320

.674

.000

Diabetic nephropathy

.026

−0.112

.039

.339

Systolic BP

.014

−0.004

.002

.622

Diastolic BP

.048

−0.001

.011

.090

CTR

.157

−0.05

−0.022

.000

Albumin

.176

.330

.619

.000

Creatinine

.162

−0.1

−0.05

.278

eGFR

.187

.090

.163

.000

Total cholesterol

.11

.001

.005

.000

Triglyceride

.074

.000

.003

.013

HDL-C

.040

−0.002

.009

.188

Calcium

.201

.223

.383

.000

Phosphate

.088

−0.134

−0.032

.001

Ca x P product

.020

−0.004

.008

.467

i-PTH

.049

−0.001

.000

.113

C-reactive protein

.002

−1.087

1.016

.948

Glucose

.016

−0.001

.002

.585

Fe

.068

.000

.005

.021

TIBC

.087

.001

.005

.003

Ferritin

.074

−0.001

.000

.013

ESA^a

.031

−.079

.285

.268

Long-acting ESA^b

.205

0.524

0.967

.000

Dose of ESA, per 1000 units

.075

.002

.019

.015

ARB/ACE-I

.019

−0.113

.233

.497

Vitamin D

.020

−0.12

0.253

.484

AST-120

.017

−0.148

.275

.554

Iron

.000

−0.176

.176

.999