Table 2 Patients clinical, medical and laboratory information

Cause of ESRD

 HTN

 DM

 HTN and DM

 Glomerulonephritis

 Others

  Drugs

  Medical error

  Unknown

Number of prescribed medications

 < 5

 5–10

 > 10

Vascular access for HD

 Catheter

 Fistula

 Graft

Dialysis sessions per week

 2 Times weekly

 3 Times weekly

Length of dialysis session in hours

 3 h or less

 3.5 h

 4 h or more

Years under dialysis

 < 2 years

 2–5 years

 > 5 years

Patients on iron products

Patients on erythropoietin

Psychiatric symptoms^a

 HADS-A

 HADS-D

 HADS-T

Patients had practiced exercise last week

Duration of exercise per week in minutes^a

Number of emergency visits last year^a

Number of hospital admissions last year^a

Serum creatinine^a (normal range 0.7–1.3 mg/dL)

Serum urea^# (normal range: 2.5–7.1 mmol/L)

Calcium level^a (normal range 2.2–2.6 mmol/L)

Potassium level^a (normal range 3.5–5.0 mmol/L)

Parathyroid hormone^a (normal range 10–65 ng/L)

Iron^a (normal range 11–29 μmol/L)

Hemoglobin^a (normal range male 14–17, female 12–16 g/dL)

Total iron binding capacity^a (normal range 250–460 μg/dL)

Serum ferritin^a (normal range 15–200 ng/mL)