Table 2 Cox regression for analysis of the risk of death in the 60-month period of follow-up, according to the baseline characteristics of the patients

Male

0.81 (0.74 – 0.90)

<0.0001

0.96 (0.83 – 1.11)

0.58

Age (years)

1.04 (1.03 – 1.04)

<0.0001

1.03 (1.03 – 1.04)

<0.0001

Non-white race/ethnicity

0.94 (0.85 – 1.04)

0.25

-

-

Diabetes

1.23 (1.12 – 1.36)

<0.0001

1.29 (1.11 – 1.50)

0.001

Public healthcare

1.01 (0.91 – 1.11)

0.87

-

-

Early referral

0.62 (0.55 – 0.70)

<0.0001

0.88 (0.74 – 1.05)

0.16

First dialysis in hospital

1.62 (1.43 – 1.83)

<0.0001

1.29 (1.05 – 1.58)

0.016

Catheter

2.01 (1.79 – 2.26)

<0.0001

1.22 (1.03 – 1.44)

0.023

BMI (Kg/m²)

0.97 (0.96 – 0.98)

<0.0001

0.98 (0.96 – 0.99)

0.015

Haemoglobin (g/dL)

0.87 (0.85 – 0.90)

<0.0001

0.95 (0.91 – 0.98)

0.004

TSAT ≥ 20%

0.67 (0.60 – 0.75)

<0.0001

0.80 (0.69 – 0.92)

0.002

Ferritin ≥ 200 ng/mL

1.09 (0.98 – 1.22)

0.12

-

-

Erythropoietin use

0.96 (0.87 – 1.05)

0.37

-

-

BUN (mg/dL)

0.99 (0.99 – 0.99)

<0.0001

1.00 (0.99 – 1.00)

0.13

Serum albumin (g/L)

0.92 (0.91 – 0.93)

<0.0001

0.96 (0.95 – 0.98)

<0.0001

Potassium (mEq/L)

0.98 (0.93 – 1.03)

0.48

-

-

Phosphorus (mg/dL)

0.89 (0.86 – 0.92)

<0.0001

1.00 (0.95 – 1.06)

0.92

Corrected calcium (mg/L)

1.02 (0.99 – 1.06)

0.14

-

-

iPTH (per 100 pg/mL)

0.95 (0.94 – 0.96)

<0.0001

1.00 (0.98 – 1.02)

0.81

ALP (per 100 UI/L)

1.09 (1.06 – 1.12)

<0.0001

1.09 (1.03 – 1.16)

0.005

Pre-HD SBP (mmHg)

1.00 (0.99 – 1.00)

0.34

-

-

Pre-HD DBP (mmHg)

0.98 (0.98 – 0.99)

<0.0001

1.00 (0.99 – 1.01)

0.89

Lean mass (%)

0.99 (0.98 – 0.99)

<0.0001

1.00 (0.99 – 1.00)

0.33

Fat mass (%)

1.00 (0.99 – 1.00)

0.51

-

-

Fluid overload

1.88 (1.66 – 2.14)

<0.0001

1.47 (1.27 – 1.71)

<0.0001