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Table 1 Patient clinical baseline characteristics at dialysis initiation according to age and period

From: The clinical status and survival in elderly dialysis: example of the oldest region of France

  <75 yr ≥75 yr  
  2002-2004 2005-2007 P1 2002-2004 2005-2007 P2 P3
  (n = 197) (n = 146)   (n = 96) (n = 118)   
  % %   % %   
Age    0.05    NS  
  0-19 3(1.5) 1(0.7)      
  20-44 31(15.7) 11(7.5)      
  45-64 71(36.0) 68(46.6)      
  65-74 92(46.7) 66(45.2)      
  75-84     81(84.4) 99(83.9)   
  85 et +     15(15.6) 19(16.1)   
Gender        
  Men 126(64.0) 100(68.5)   54(56.2) 83(70.3)   
  Women 71(36.0) 46(31.5)   42(43.7) 35(29.7)   
Primary rental disease    NS    0.10 NS
  Glomerulonephritis 38(19.3) 24(16.4)   9(9.4) 20(16.9)   
  Diabetic nephropathy 45(22.8) 34(23.3)   19(19.8) 15(12.7)   
  Cystic nephropathy 14(7.1) 17(11.6)   2(2.1) 2(1.7)   
  Tubular-Interstitial nephropathy 19(9.6) 12(8.2)   4(4.2) 8(6.8)   
  Vascular nephropathy 36(18.3) 20(13.7)   37(38.5) 51(43.2)   
  Unknown 29(14.7) 25(17.1)   23(24.0) 15(12.7)   
  Other 16(8.1) 14(9.6)   2(2.1) 7(5.9)   
Renal biopsy 43(21.8) 31(21.2) NS 4(4.2) 14(11.9) 0.044* 0.047*
Co-morbidities        
  Diabetes 65(33.0) 54(37.0) NS 39(40.6) 34(28.8) 0.07 0.06
  Chronic respiratory disease 15(7.6) 17(11.6) NS 11(11.5) 14(11.9) NS NS
  Heart failure 40(20.3) 28(19.2) NS 42(43.7) 37(31.4) 0.06 NS
  Cerebrovascular disease 10(5.1) 18(12.3) 0.016* 13(13.5) 16(13.6) NS 0.09
  Peripheral vascular disease 28(14.2) 37(25.3) 0.010* 26(27.1) 31(26.3) NS 0.07
  Arrhythmia 22(11.2) 31(21.2) 0.011* 29(30.2) 29(24.6) NS 0.015
  Coronary vascular disease 40(20.3) 33(22.6) NS 35(36.5) 42(35.6) NS NS
  Active malignancy 9(4.6) 12(8.2) NS 7(7.3) 10(8.5) NS NS
Risk factors        
  History of hypertension 148(75.1) 118(80.8) NS 75(78.1) 101(85.6) NS NS
  Smoker/Ex-smoker 71(36.0) 69(47.3) NS 31(32.3) 45(38.1) NS NS
Handicap 1 23(11.7) 19(13.0) NS 6(6.2) 9(7.6) NS NS
Mobility    NS    0.002* NS
  Walk without help 169(88.5) 130(90.9)   57(63.3) 88(75.9)   
  Need assistance for transfers 15(7.9) 6(4.2)   31(34.4) 18(15.5)   
  Totally dependent for transfers 7(3.7) 7(4.9)   2(2.2) 10(8.6)   
  1. P1. P-value <75 years (2002-2004 vs 2005-2007).
  2. P2. P-value ≥75 years (2002-2004 vs 2005-2007).
  3. P3. P-value Age x Period.
  4. 1including severe disability (vision impairment, paraplegia, hemiplegia, and amputation) and severe behaviour disorders (dementia, psychosis or severe neurosis).
  5. NS Not Significant (with p>0.1).