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Table 5 Cox proportional model hazard for all-cause mortality in the subgroup with IDWG ≥4% of DW

From: Non-adherence to Haemodialysis, Interdialytic weight gain and cardiovascular mortality: a cohort study

Risk factors

Unadjusted

Multivariate

HR (CI 95%)

p

HR (CI 95%)

p

Age (years)

1.06 (1.02–1.09)

<  0.001

1.05 (1.01–1.08)

0.002

Cardiovascular or cerebrovascular disease (yes)

3.39 (1.81–6.33)

<  0.001

2.74 (1.42–5.27)

0.003

Diabetes Mellitus (yes)

1.74 (0.80–3.79)

0.15

1.09 (0.43–2.74)

0.84

Vascular access (catheter)

3.13 (0.96–10.23)

0.05

2.35 (0.63–8.22)

0.18

BMI between 18,5–24.9 Kg/m2

1 (reference)

0.045

1 (reference)

 

BMI between 25 and 29.9 Kg/m2

1.18 (0.52–2.67)

0.68

0.85 (0.37–1.95)

0.70

BMI ≥ 30 Kg/m2

0.93 (0.21–3.98)

0.92

1.26 (0.28–5.53)

0.96

BMI < 18.5 Kg/m2

3.02 (1.38–6.63)

0.006

3.06 (1.39–6.76)

0.005

  1. HR Hazard ratio, CI confidence interval, BMI body mass index, IDWG interdialytic weight gain, DW dry weight
  2. Other variables assessed in the univariate analysis: sex, race, time on hemodialysis, smoking, systemic arterial hypertension, background of parathyroidectomy, Serum albumin, spKt/V, Parathormone ≥600 pg/mL, Serum phosphorus > 5.5 mg/dL, Ultrafiltration (ml/h/Kg)