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Table 4 Categorized correlates and HRQoL summary scores

From: Health-related quality of life in different stages of chronic kidney disease and at initiation of dialysis treatment

       PCS      MCS  
Parameter N Mean (SD) p-value Mean (SD) p-value
GFR <45 482 33.2 (10.7) .000 39.7 (13) .000
  ≥45 53 46.3 (10)   47.6 (10.6)  
Age <61 281 37.6 (11.2) .000 39.8 (13.4) ns
  ≥61 254 31.1 (10.5)   41.1 (12.5)  
Gender Male 360 34.6 (11.5) ns 40.4 (13) ns
  Female 175 34.4 (11.1)   40.5 (12.8)  
CVD Yes 264 29.6 (9.9) .000 39.4 (12.7) ns
  No 271 39.4 (10.5)   41.4 (13.2)  
Diabetes Yes 158 30.4 (10.8) .000 40.1 (13.1) ns
  No 377 36.2 (11.2)   41.2 (12.6)  
Hb ≤110 g/L 205 31.0 (10.2) .000 36.7 (12.9) .000
  >110 g/L 330 36.7 (11.5)   42.8 (12.5)  
p-Albumin ≤35 g/L 306 32.0 (10.8) .000 38.1 (12.9) .000
  >35 g/L 227 37.9 (11.3)   43.6 (12.4)  
CRP <5 mg/L 132 41.7 (11.2) .000 43.6 (12.4) .000
  ≥5 mg/L 345 31.9 (10.5)   38.7 (13.1)  
MAP ≤110 mmHg 403 34.1 (11.7) ns 40.7 (12.9) ns
  >110 mmHg 125 36.1 (10.1)   39.9 (12.8)  
BMI ≤30 439 35.3 (11.4) .003 40.7 (12.8) ns
  >30 76 31.2 (10.8)   41.1 (13.2)  
BMI ≤20 55 36.6 (11.7) ns 40.6 (14.2) ns
  >20 460 34.4 (11.3)   40.8 (12.7)  
  1. PCS = Physical Composite Summary, MCS = Mental Composite Summary, GFR = glomerular filtration rate in ml/min/1.73 m², CVD = Cardiovascular disease, Hb = Hemoglobin CRP = C-Reactive Protein, MAP = Mean Arterial Pressure, BMI = Body Mass Index.
  2. Significance level: p < .05ns = not significant.