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Table 3 Influence of biochemical parameter on the survival time of patients on hemodialysis

From: Survival and analysis of predictors of mortality in patients undergoing replacement renal therapy: a 20-year cohort

Factors Mean survival
time (year) (SD)
95% CI
(years)
p-valuea
Laboratory Values
Post urea (mg/dl)
  ≤ 29,00 5,411 (0,548) 4,337 – 6,485 0,006
 29,01 – 47,00 7,594 (0,640) 6,339 – 8,849  
  ≥ 47,01 7,335 (0,655) 6,051 – 8,618  
Creatinine (mg/dl)
  ≤ 4,80 5,687 (0,649) 4,414 – 6,960 0,030
 4,81 – 7,20 7,008 (0,753) 5,532 – 8,485  
  ≥ 7,21 7,672 (0,719) 6,262 – 9,082  
Calcium (mg/dl)
  ≤ 8,99 6,803 (1226) 4,399 – 9,206 0,154
 9,00 – 11,00 6,597 (0,598) 5,425 – 7,768  
  ≥ 11,01 4,390 (0,896) 2,635 – 6,146  
Phosphorus (meq/lit)
  ≤ 4,49 5,676 (0,533) 4,632 – 6,721 0,047
 4,50 – 6,00 7,626 (0,759) 6,138 – 9,114  
  ≥ 6,01 7,118 (0,891) 5,371 – 8,865  
Glucose (mg/dl)
  ≤ 99,99 7,155 (0,603) 5,973 – 8,337 0,768
 100,00 – 125,99 6,423 (0,776) 4,903 – 7,944  
  ≥ 126,00 6,794 (0,638) 5,545 – 8,044  
Potassium (meq/lit)
  ≤ 4,40 6,263 (0,675) 4,940 – 7,585 0,530
 4,41 – 5,20 6,981 (0,686) 5,636 – 8,326  
  ≥ 5,21 6,747 (0,652) 5,469 – 8,025  
Red blood cell (g/dl)
  ≤ 3,00 6,173 (0,393) 5,404 – 6,943 0,434
 3,01 – 4,00 6,656 (0,705) 5,273 – 8,038  
  ≥ 4,01 6,328 (0,531) 5,287 – 7,369  
Hemoglobin (g/dl)
  ≤ 8,30 6,716 (0,658) 5,427 – 8,004 0,991
 8,31 – 9,70 6,458 (0,681) 5,123 – 7,793  
  ≥ 9,71 6, 288 (0,658) 5,299 – 7,877  
Hematocrit (%)
  ≤ 25,30 6,792 (0,690) 5,439 – 8,145 0,896
 25,31–29,80 6,485 (0,698) 5,117 – 7,852  
  ≥ 29,81 6,672 (0,645) 5,408 – 7,937  
Leukocyte (μg/l)
  ≤ 5,80 7,455 (0,716) 6,052 – 8,858 0,059
 5,81 – 7,70 5,571 (0,497) 4,597 – 6,546  
  ≥ 7,71 7,592 (0,708) 6,204 – ,980  
Albumin (g/dl)
  ≤ 3,50 6,256 (0,640) 5,002 – 7,510 0,059
 3,51 – 4,00 7,921 (0,670) 6,608 – 9,234  
  ≥ 4,01 6,500 (0,587) 5,350 – 7,650  
Ferritin (μg/l)
  ≤ 178,40 5,872 (0,569) 4,757 – 6,986 0,049
 178,41–494,00 8,265 (0,740) 6,815 – 9,715  
  ≥ 494,01 6,050 (0,522) 5,026 – 7,073  
Serum iron (μg/l)
  ≤ 49,99 6,591 (0,630) 5,356 – 7,826 0,065
 50,00–150,00 7,140 (0,486) 6,187 – 8,093  
  ≥ 150,01 3,757 (0,887) 2,019 – 5,495  
Alkaline phosphatase (U/l)
  ≤ 131,00 6,740 (0,860) 5,055 – 8,425 0,636
 131,01–221,00 7,437 (0,653) 6,157 – 8,716  
  ≥ 221,01 6,275 (0,472) 5,351 – 7,199  
Proteins (mg/dl)
  ≤ 6,30 6,865 (0,640) 5,609 – 8,120 0,122
 6,31–7,00 7,403 (0,673) 6,084 – 8,722  
  ≥ 7,01 6,174 (0,550) 5,096 – 7,252  
Globulin (g/dl)
  ≤ 2,72 6,779 (0,571) 5,660 – 7,898 0,775
 2,73–3,40 6,280 (0,516) 5,268 – 7,292  
  ≥ 3,41 7,345 (0,770) 5,836 – 8,855  
PTH (pg/ml)
  ≤ 2,72 6,911 (0,649) 5,638 – 8,184 0,682
 2,73–3,40 7,107 (0,684) 5,766 – 8,448  
  ≥ 3,41 6,572 (0,473) 5,644 – 7,500  
Aluminum (μg/l)
  ≤ 5,90 7,533 (0,774) 6,016 – 9,051 0,307
 5,91–12,40 8,625 (0,790) 7,078 – 10,173  
  ≥ 12,41 7,005 (0,567) 5,893 – 8,116  
Cholesterol (mg/dl)
  ≤ 145,00 7,798 (0,662) 6,501 – 9,095 0,320
 146,00–179,00 9,229 (0,825) 7,612 – 10,847  
  ≥ 180,00 8,179 (0,791) 6,629 – 9,730  
Triglyceride (mg/dl)
  ≤ 110,00 7,836 (0,655) 6,553 – 9,120 0,903
 110,01–170,00 8,797 (0,868) 7,095 – 10,498  
  ≥ 170,01 7,859 (0,602) 6,679 – 9,040  
PRU
  ≤ 62,32 7,514 (0,685) 6,172 – 8,856 0,076
 62,33–70,97 7,630 (0,634) 6,389 – 8,872  
  ≥ 70,98 5,441 (0,517) 4,427 – 6,454  
nPCR (mg/dl)
  ≤ 0,91 6,959 (0,785) 5,419 – 8,498 0,043
 0,92–1,33 8,061 (0,634) 6,819 – 9,303  
  ≥ 1,34 6,523 (0,596) 5,354 – 7,691  
Calcium x Phosphorus (mg/dl)
  ≤ 34,24 5,782 (0,578) 4,649 – 6,915 0,141
 34,25–49,24 7,257 (0,745) 5,797 – 8,718  
  ≥ 49,25 7,006 (0,707) 5,619 – 8,392  
Pre urea (mg/dl)
  ≤ 95,00 5,796 (0,643) 4,536 – 7,055 0,121
 95,01–132,00 7,273 (0,777) 5,750 – 8,796  
  ≥ 132,01 7,239 (0,690) 5,886 – 8,592  
  1. Notes: aLog-rank test
  2. Abbreviations: CKD chronic kidney disease, DM diabetes mellitus, SD standard deviation