Table 1 Clinical and demographic characteristics of KF patients and controls.

From: Longitudinal genome-wide DNA methylation changes in response to kidney failure replacement therapy

 

Controls

Kidney transplantation group

Kidney transplantation group

Incident dialysis group

Incident dialysis group

p-value

Baseline

Baseline

1 year

Baseline

1 year

N = 24

N = 12

N = 12

N = 11

N = 11

Clinical characteristics

Age (years)

51.5 (46.5–56.0)

48.0 (44.5–50.0)

49.0 (45.5–51.0)

48.0 (43.0–54.0)

49.0 (44.0–55.0)

0.27

Males, n (%)

14 (58%)

7 (58%)

7 (58%)

8 (73%)

8 (73%)

0.85

Diabetes mellitus, n (%)

0 (0%)

3 (25%)

3 (25%)

3 (27%)

3 (27%)

0.12

Cardiovascular disease, n (%)

0 (0%)

3 (25%)

na

3 (27%)

3 (27%)

0.043

eGFRa (ml/min/1.73m2)

93.2 (80.3–105.4)

6.6 (5.7–8.2)

62.7 (44.9–74.3)

5.0 (3.9–9.0)

na

< 0.001

BMI (kg/m2)

23.7 (22.3–27.0)

23.8 (20.2–29.8)

24.6 (22.0–27.4)

25.5 (22.0–26.4)

26.0 (22.9–27.7)

0.61

Biochemical characteristics

Albumin (g/l)

40 (38–42)

36 (34–37)

36 (34–39)

34 (32–40)

35 (34–40)

0.003

Creatinine (µmol/l)

75 (69–87)

680 (529–858)

117 (90–143)

742 (591–955)

761 (658–871)

< 0.001

Haemoglobin (g/l)

na

116 (105–126)

139 (129–145)

117 (101–126)

110 (106–126)

0.001

Total Cholesterol (mmol/l)

5.1 (4.5–5.8)

4.8 (4.4–6.3)

6.0 (4.8–7.7)

4.3 (4.0–5.2)

4.4 (4.1–5.3)

0.007

HDL-cholesterol (mmol/l)

na

1.3 (1.1–1.4)

1.2 (1.1–1.5)

1.5 (1.4–1.8)

1.5 (1.2–1.7)

0.11

Triglyceride (mmol/l)

1.0 (0.7–1.7)

1.8 (1.5–2.6)

2.6 (1.5–4.0)

1.5 (1.2–1.9)

1.6 (1.1–2.9)

0.022

IL-6 (pg/ml)

1.2 (0.7–3.4)

1.0 (0.8–1.3)

na

5.0 (3.7–9.5)

9.7 (4.4–14.9)

< 0.001

hsCRP (mg/l)

0.6 (0.4–1.7)

1.0 (0.2–3.5)

1.4 (0.8–9.5)

1.8 (1.0–4.5)

2.0 (1.0–2.7)

0.095

Leucocytes, (109/l)

5.7 (4.7–7.0)

8.8 (6.5–10.5)

7.1 (6.0–7.4)

7.5 (4.1–8.0)

6.6 (4.7–7.6)

0.022

Thrombocytes, (109/l)

257 (229–293)

240 (232–265)

211 (168–253)

238 (143–297)

263 (137–311)

0.70

Neutrophils, (109/l)

2.8 (2.2–4.0)

6.7 (3.6–9.0)

4.4 (3.4–6.2)

4.1 (2.6–5.4)

3.2 (2.0–4.4)

0.002

Eosinophils, (109/l)

0.3 (0.2–0.4)

0.1 (0.1–0.2)

0.1 (0.1–0.1)

0.3 (0.2–0.5)

0.2 (0.1–0.3)

0.002

Basophils, (109/l)

0.04 (0.03–0.06)

0.1 (0.1–0.1)

0.1 (0.1–0.1)

0.1 (0.04–0.1)

0.1 (0.1–0.1)

< 0.001

Lymphocytes, (109/l)

2.2 (1.7–2.7)

1.2 (1.0–1.4)

1.3 (0.9–2.0)

1.8 (0.9–2.1)

1.4 (0.9–2.0)

0.002

Monocytes, (109/l)

0.3 (0.3–0.4)

0.6 (0.4–0.8)

0.7 (0.5–0.9)

0.5 (0.3–0.6)

0.4 (0.3–0.6)

< 0.001

  1. Continuous variables are presented as median (25–75 percentile). Categorical variables are presented as number (n)/percentage (%). p-values are derived from statistical comparison (Chi square and Kruskal Wallis test) between all groups.
  2. hsCRP high-sensitivity C-reactive protein, IL-6 interleukin-6, HDL high-density lipoprotein.
  3. aeGFR, estimated GFR used the CKD-EPI equation.