Table 2.

Baseline characteristics of patients with and without assigned CFS scores

VariableCFS Score Available (n=390)CFS Score Not Available (n=78)P Value
Age (yr), mean±SD63±1560±140.17
Age >65 yr, n (%)196 (50)30 (38)0.06
Men, n (%)263 (67)43 (55)0.05a
Caucasian, n (%)346 (89)71 (91)0.69
ESRD cause, n (%)0.24
 Diabetic nephropathy116 (30)20 (26)
 GN47 (12)8 (10)
 Polycystic kidney disease26 (7)9 (12)
 Ischemic renal disease77 (20)12 (15)
 Other81 (21)14 (18)
 Unknown5 (13)3 (18)
Comorbid conditions, n (%)
 Diabetes188 (48)31 (40)0.21
 Previous myocardial infarction126 (32)18 (23)0.14
 History of stroke50 (13)8 (10)0.71
 Peripheral vascular disease71 (18)11 (14)0.51
 Congestive heart failure87 (22)12 (15)0.22
 Previous or active malignancy30 (8)7 (9)0.65
 Dementia8 (2)2 (3)0.68
Charlson Comorbidity Index, median (interquartile range)4 (3–6)4 (2–5)0.01a
Charlson Comorbidity Index score ≥5, n (%)171 (44)24 (31)0.03a
CFS score, mean ± SD4±2
Type of dialysis, n (%)0.03a
 Hemodialysis301 (77)51 (65)
 Peritoneal dialysis89 (23)27 (35)
Year of start, n (%)<0.001a
 200966 (17)36 (46)
 201099 (25)14 (18)
 201196 (25)13 (17)
 201287 (22)6 (7)
 201342 (11)9 (12)
Body mass index, n37260
Body mass index, median (interquartile range)29 (25–34)28 (23–32)0.15
eGFR (MDRD; ml/min per 1.73 m2) at start, median (interquartile range)8 (6–10)8 (6–11)0.41
Albumin (g/dl), median (interquartile range)3.2 (2.8–3.6)3.3 (2.8–3.6)0.85
  • CFS, Clinical Frailty Scale; MDRD, Modification of Diet in Renal Disease formula (39).

  • a Statistically significant.