Table 1 Characteristics of HD patients.

From: Paraoxonase 1 concerning dyslipidaemia, cardiovascular diseases, and mortality in haemodialysis patients

Variables tested in both groups

Patients genotyped for PON1 SNVs (n = 1407)

Patients tested for PON1 activity (n = 93)

P-valuea

Variables tested in one group

Patients tested for PON1 activity (n = 93)

Clinical data

Clinical and laboratory data

Male sex (n, %)

782 (55.6%)

55 (59.1%)

0.520

Living in the rural area (n, %)

27 (29.0)

Age (years)

67.0 (11.9–96.1)

66.7 (18.3–86.2)

0.231

LF-HD (n, %)

78 (83.9%)

RRT duration (years)

5.8 (0.01–34.0)

3.9 (0.2–22.3)

0.00003

Mean arterial pressure (mmHg)

113.3 (60–166.7)

Diabetic nephropathy (n, %)

405 (28.8%)

19 (20.4%)

0.096

Cigarette smoking (n, %)

9 (9.7%)

Coronary heart disease (n, %)

542 (38.5% of 1406)

25 (26.9%)

0.027

Urine output (mL/day)

600 (0–2100)

Myocardial infarction (n, %)

299 (21.3% of 1406)

15 (16.1%)

0.292

Treatment with antihypertensive drugs (n, %)

43 (46.2%)

Ischemic cerebral stroke (n, %)

256 (19.2%) of 1335

9 (9.7)

0.026

Treatment with phosphate binding agents (n, %)

79 (84.9%)

Dry body mass (kg), n = 1235

71.5 (31.0–196.0)

81.0 (44.4–144.0)

0.000001

Treatment with vitamin D or vitamin D analogs (n, %)

7 (7.5%)

Body mass index (kg/m2)b

25.5 (14.3–59.2) n = 1230

26.7 (17.8–51.0)

0.010

Parathyroidectomy (n, %)

1 (1.1%)

Lipid-modifying treatment (n, %)

statins (n, %)

fibrates (n, %)

statins and fibrates (n, %)

ezetimibe (n, %)

statins + ezetimibe (n, %)

582 (44.3% of 1314)

533 (91.6% of 582)

36 (6.2% of 582)

10 (1.7% of 582)

1 (0.2% of 582)

2 (0.3% of 582)

24 (25.8% of 93)

23 (95.8% of 24)

1 (4.2% of 24)

0

0

0

0.0002

0.712

1.000

1.000

1.000

1.000

Treatment with ESA (n, %)

66 (71.0)

ESA dose (µg/kg/week)

90 (0–530)

Type of dyslipidaemia by K/DOQI

Hemoglobin (g/dL)

11.4 ± 1.3

Hyper-LDL-cholesterolemic (n, %)

388 of 1264 (30.7% )

39 of 93 (41.9%)

0.028

Treatment with cinacalcet (n, %)

6 (6.5%)

Hyper-TG/hyper-non-HDL-cholesterolemic (n, %)

79 of 1264 (6.2% )

5 of 93 (5.4%)

1.000

Vitamin C supplementation (n, %)

2 (2.2%)

Mixed (n, %)

186 of 1264 (14.7% )

14 of 93 (15.1%)

0.545

Zinc supplementation (n, %)

3 (3.2%)

Non-dyslipidemic (n, %)

610 of 1264 (48.3% )

35 of 93 (37.6%)

0.053

Green tea intake (n, %)

4 (4.3%)

Atherogenic dyslipidaemia (n, %)

459 of 1264 (36.3% )

39 of 93 (41.9%)

0.316

PON1 activity (U/L)

101.0 (27.7–212.9)

Laboratory data

PON1/HDL-cholesterol ratio

2.27 (0.57–7.10)

Total cholesterol (mg/dL)

170.2 (51–626)

183 (83–626)

0.170

Creatinine (mg/dL)

5.7 (1.9–14.4)

HDL-cholesterol (mg/dL)

40 (5–146.8)

44.4 ± 11.7

0.044

Urea (mg/dL)

106 (41–270)

LDL-cholesterol (mg/dL)

95.9 (13.3–512)

104 (35–512)

0.012

C-reactive protein (mg/L)

4.3 (0.3–79.3)

TG (mg/dL)

146.4 (29.8–1363)

157 (65–460)

0.291

Albumin (mg/dL)

4.1 (2.6–4.7)

Non-HDL-cholesterol (mg/dL)

128 (8–593)

135 (41–593)

0.346

Total calcium (mg/dL)

8.8 (6.8–12.5)

LDL/HDL cholesterol ratio

2.38 (0.21–15.52)

2.35 (0.680–15.52)

0.699

Phosphorus (mg/dL)

4.85 (2.32–10.52)

HDL/TC ratio

0.249 (0.045–0.906)

0.250 (0.053–0.530)

0.430

Total ALP (IU/L)

93 (24–321)

TG/HDL-cholesterol ratio

3.60 (0.44–49.71)

3.42 (1.06–17.04)

0.717

Parathyroid hormone (pg/mL)

280 (7.3–1783.8)

  1. ALP alkaline phosphatase, ESA erythropoietin-stimulating agent, HD haemodialysis, HDL high-density lipoprotein, K/DOQI Kidney Disease Outcomes Quality Initiative, LDL low-density lipoprotein, LF-HD low-flux haemodialysis, NA not available in all patients, PON1 paraoxonase 1, PON1 paraoxonase 1 gene, SNV single nucleotide variant, RRT renal replacement therapy, TG triglyceride.
  2. aThe Kruskal–Wallis and Mann–Whitney U tests were used for comparison of continuous variables. Dichotomous variables were compared using Fisher's exact test.
  3. bBMI was not calculated in 5 patients due to amputation of the leg(s).