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Table 1 Baseline demographic and biochemical characteristics of the separate cohorts of incident dialysis patients and prevalent PD patients, respectively

From: Health-related quality of life as predictor of mortality in end-stage renal disease patients: an observational study

Baseline characteristics

 

Incident dialysisa (n = 338)

Prevalent PD (n = 62)

p

Age (years; n = 338/62)

 

63 (45–80)

65 (49–81)

NS

Female (%; n = 338/62)

 

105 (31)

23 (35)

NS

CVD (%; n = 336/62)

 

177(53)

19 (31)

0.001

DM (%; n = 338/62)

 

84 (25)

13 (21)

NS

Davies Comorbidity Score (%; n = 335/62)

Low risk (0)

124 (37)

19 (31)

NS

Medium risk (1–2)

150 (45)

34 (55)

High risk (≥3)

61 (18)

9 (15)

 

BMI (kg/m2; n = 338/62)

 

25 (22–28)

25 (23–28)

NS

MBP (mmHg, n = 333/62)

 

103 (85–126)

97.0 (80–117)

0.0004

eGFRb(ml/min, n = 338/62)

 

4.9 (2.9–9.6)

5.8 (4.5–9.2)

0.0004

Weekly KT/V (renal + peritoneal)

 

NA

2.2(1.7–2.9)

Metabolic biomarkers

 Hemoglobin (g/L, n = 338/62)

 

109 (89–127)

121 (106–132)

< 0.0001

 Albumin (g/L; n = 336/62)

 

32 (25–39)

32 (24.6–38)

NS

 Potassium (mmol/L, n = 338/62)

 

4.4 (3.5–5.4)

4.1 (3.2–4.9)

0.0002

 Ca x P (n = 337/62)

 

4.5 (2.8–6.5)

3.9 (2.6–5.5)

< 0.0001

 PTH (ng/L, n = 327/62)

 

200 (45–595)

256 (78–567)

0.03

 CRP (mg/L; n = 333/62)

 

8(5.1–75.6)

4.1(0.7–26.2)

0.002

 IL-6 (pg/mL; n = 147/62)

 

5.6 (2.1–29.0)c

6.4 (2.1–21.7)

NS

  1. The p values are noted for descriptive purpose only
  2. Presented as median and range (10th – 90th percentile), numbers, or proportions
  3. Bold entries are significant
  4. Abbreviations: CVD cardiovascular disease, DM diabetes mellitus, BMI body mass index, MBP mean blood pressure, eGFR estimated glomerular filtration rate, Ca calcium, P phosphate, CRP C-reactive protein, IL-6 interleukin-6, PTH parathyroid hormone
  5. aIncident dialysis patients included patients starting on HD (≈68%) and PD (≈32%)
  6. beGFR, according to CKD-EPI equation
  7. cVariable measured in 147 out of 338 Incident dialysis patients