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Table 1 Subject characteristics

From: Maintenance of activities of daily living despite risk from genetic polymorphism in hemodialysis patients under nutritional management who survived an average of 30 years

Variable   Total (n = 78)
Age Years 632 ± 8.1a
Gender (Male/female) n (%) 31/47 (39.7/60.3 %)b
Duration of hemodialysis Years 305 (27.0–34.3)c
Age of initiation of hemodialysis Years 32.4 ± 8.0
Primary disease   
 Chronic glomerulonephritis n (%) 55 (70.5 %)
 Chronic pyelonephritis n (%) 1 (1.3 %)
 Nephropathy of pregnancy n (%) 3 (3.8 %)
 Polycystic kidney n (%) 2 (2.6 %)
 Other nephritides that cannot be classified n (%) 4 (5.1 %)
 Other n (%) 2 (2.6 %)
 Unknown n (%) 11 (14.1 %)
MTHFR C677T (CC/CT/TT) n (%) 23/34/21 (29.5/43.6/26.9 %)
Height cm 157.6 ± 8.3
Weight (dry weight) kg 46.3 (41.7–57.0)
Body mass index (BMI) kg/m2 197.7 ± 2.7
 BMI < 18.5 n (male/female) (%) 32 (7/25) (41.0 %)
 18.5  BMI < 25 n (male/female) (%) 42 (21/21) (53.8 %)
 25  BMI n (male/female) (%) 4 (3/1) (5.1 %)
Geriatric nutrition index (GNRI)   93 ± 6
 GNRI 91 (without risk of malnutrition) n (%) 46 (59.0 %)
 <GNRI 91 (with risk of malnutrition) n (%) 32 (41.0 %)
Barthel Index (BADL)   90.0 (78–100)
 BADL (independent/some help is necessary/with help) n (%) 74/4/3 (91/5/4 %)
Weight change rate between dialysisd % 5.1 ± 1.9
Kt/Vspe   1.67 ± 0.2
Biochemical parameters   
 Serum albumin (alb) g/dL 3.70 ± 0.3
 Total protein (TP) g/dL 6.60 ± 0.4
 Blood urea nitrogen (BUN) mg/dL 65.00 ± 17.1
 Serum creatinine (Cr) mg/dL 10.70 ± 2.2
 Urea acid (UA) mg/dL 7.10 ± 1.5
 Serum sodium (Na) mEq/L 140.00 ± 2.5
 Serum potassium (K) mEq/L 5.10 ± 0.7
 Serum inorganic phosphorous (IP) mg/dL 5.40 ± 1.4
 Serum calcium (Ca) mg/dL 9.10 ± 0.7
 Hemoglobin (Hb) g/dL 10.30 (9.6–11.2)
 Hematocrit (Hb) % 33.00 ± 3.4
 Serum folate ng/mL 4.60 (3.8–5.4)
 Serum homocystein (Hcy) μmol/L 30.80 (23.6–38.4)
 Serum vitamin in B12 (VB12) pmol/L 541.00 (340–1250)
  1. Abbreviations: ESRD end stage renal disease, MTHFR methylene tetrahydrofolate reductase, BMI body mass index, GNRI geriatric nutrition risk index, BADL Barthel index
  2. aValues are means ± standard deviation (all such values)
  3. bValues are number of all patients (%)
  4. cValues are median (25th and 75th percentiles), (all such values)
  5. dBody weight change rate between hemodialysis; 55 subjects with data before and after hemodialysis. (values are means ± standard deviation)
  6. eStandardized dialysis volume (Kt/Vsp); 55 subjects with data before and after hemodialysis. (values are means ± standard deviation)