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Table 1 Demographic and clinical characteristics of study participants: results are expressed as percentages for categorical variables and mean ± SD or median [IQR] for continuous variables

From: Screening tools to expedite assessment of frailty in people receiving haemodialysis: a diagnostic accuracy study

Variables Frail
(28)
Non-frail
(48)
P-value
Gender, female, n (%) 11 (39.3) 24 (50) 0.366
Age (years) 66.5 ± 10.5 57.9 ± 14.9 0.009
BMI (kg * m−2) 28.6 ± 6.3 29.2 ± 6.4 0.672
Dialysis vintage (days) 449 [881] 497 [891] 0.690
CCI (score) 6 ± 2.1 4.8 ± 2.3 0.032
Diabetes mellitus, n (%) 9 (32.1) 11 (22.9) 0.378
Vascular access type, n (%)
Arteriovenous fistula 15 (53.6) 35 (74.5) 0.063
Central-venous 13 (46.4) 12 (25.5) 0.063
Medications (n°) 13.3 ± 4.5 10.9 ± 2.9 0.015
History of falls, n (%) 16 (59.3) 17 (35.4) 0.046
Laboratory values
Hb (g/dL) 11.2 ± 1.1 11.2 ± 1.2 0.924
CRP (mg/L) 8 [24] 6 [8] 0.075
Phosphate (mmol/L) 1.3 ± 0.5 1.5 ± 0.6 0.084
PTH (ρmol/L) 24 [19.4] 19.1 [16.8] 0.177
Albumin (g/L) 36.5 [5.8] 38 [4] 0.015
Adjusted calcium (mmol/L) 2.4 ± 0.1 2.3 ± 0.1 0.475
URR (%) 70.8 ± 7 71.5 ± 5.4 0.635
Creatinine (μmol/L) 555 ± 147 680 ± 150 0.001
  1. Abbreviations: SD Standard deviation, IQR Interquartile range, BMI Body mass index, CCI Charlson comorbidity index, HD Haemodialysis, Hb Hemoglobin, CRP C-reactive protein, PTH Parathyroid hormone, URR Urea reduction ratio