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Table 3 Factors associated with SF-12v2 at baseline by multiple linear regressions

From: Patterns of health-related quality of life and associated factors in Chinese patients undergoing haemodialysis

  PF RP BP GH VT
Independent variables Coef. 95 % CI P-value Coef. 95 % CI P-value Coef. 95 % CI P-value Coef. 95 % CI P-value Coef. 95 % CI P-value
Socio-demographics                
Male (vs. Female) 16.22 (7.26,25.17) < 0.001* 8.00 (-1.98,17.98) 0.116 14.85 (4.91,24.79) 0.004* 3.30 (-4.71,11.32) 0.417 1.78 (-6.01,9.57) 0.653
Age 0.09 (-0.28,0.46) 0.624 0.05 (-0.37,0.46) 0.819 −0.07 (-0.48,0.35) 0.750 −0.08 (-0.41,0.25) 0.641 0.27 (-0.06,0.59) 0.105
Educational level (No formal education)                
Primary 2.66 (-14.07,19.38) 0.755 6.94 (-11.70,25.59) 0.464 −9.33 (-27.90,9.24) 0.323 8.47 (-6.51,23.44) 0.266 −1.23 (-15.79,13.32) 0.867
Secondary −2.32 (-18.91,14.28) 0.783 −5.00 (-23.49,13.50) 0.595 −8.30 (-26.72,10.13) 0.375 1.76 (-13.09,16.62) 0.815 −3.50 (-17.93,10.94) 0.633
Tertiary 5.20 (-15.05,25.44) 0.613 −5.26 (-27.83,17.31) 0.646 −3.39 (-25.87,19.09) 0.766 −2.78 (-20.91,15.35) 0.763 −0.74 (-18.36,16.88) 0.934
Married (vs. Unmarried) 0.51 (-8.17,9.19) 0.908 4.57 (-5.10,14.25) 0.353 −3.47 (-13.11,6.17) 0.479 7.37 (-0.40,15.14) 0.063 2.91 (-4.65,10.46) 0.449
Smoker (vs. Non-smoker) −12.80 (-31.27,5.66) 0.173 −3.70 (-24.29,16.88) 0.723 −7.79 (-28.29,12.72) 0.455 −4.50 (-21.03,12.03) 0.592 −1.99 (-18.06,14.08) 0.807
Working (vs. Not working) 17.49 (6.77,28.21) 0.002* 16.42 (4.47,28.37) 0.007* 3.54 (-8.36,15.44) 0.558 12.14 (2.54,21.73) 0.013* 11.84 (2.51,21.17) 0.013*
CBHD, Yes (vs. No) 11.31 (3.22,19.40) 0.006* 2.73 (-6.28,11.75) 0.551 12.33 (3.35,21.31) 0.007* 7.59 (0.35,14.83) 0.040* −2.52 (-9.55,4.52) 0.481
Come alone/ accompanied for HD session, Accompanied by others (vs. Alone) −21.26 (-33.76,-8.76) 0.001* −2.16 (-16.09,11.78) 0.760 7.84 (-6.04,21.72) 0.267 −2.64 (-13.83,8.55) 0.642 −4.27 (-15.15,6.61) 0.440
Transportation to dialysis center (vs. Walk)                
Public transport −3.18 (-18.10,11.74) 0.675 −2.34 (-18.97,14.29) 0.782 12.09 (-4.48,28.66) 0.152 −6.73 (-20.08,6.63) 0.322 −0.43 (-13.41,12.56) 0.949
Taxi/ others −4.75 (-22.20,12.71) 0.592 −3.25 (-22.71,16.21) 0.742 10.26 (-9.12,29.64) 0.298 −10.22 (-25.85,5.41) 0.199 2.63 (-12.56,17.82) 0.733
Clinical and Co-morbidity information                
Kt/V,Targeta achieved (vs. Targeta not achieved) −6.85 (-15.72,2.02) 0.129 1.11 (-8.77,10.99) 0.825 −1.37 (-11.22,8.47) 0.784 0.83 (-7.10,8.77) 0.836 −0.72 (-8.44,6.99) 0.854
Blood haemogloblin, ≥ 9 g/dL (vs. < 9 g/dL) −0.91 (-10.34,8.51) 0.848 1.17 (-9.34,11.68) 0.826 −3.24 (-13.71,7.23) 0.542 −3.69 (-12.13,4.75) 0.390 1.01 (-7.19,9.22) 0.808
Comorbidities, Yes (vs. No) −5.05 (-14.65,4.55) 0.301 −3.80 (-14.50,6.90) 0.485 4.06 (-6.60,14.72) 0.454 1.38 (-7.21,9.97) 0.752 −3.77 (-12.12,4.58) 0.375
Constant 60.62 (27.13,94.11) < 0.001* 61.42 (24.09,98.75) 0.001* 56.80 (19.62,93.99) 0.003* 34.70 (4.72,64.68) 0.024* 43.54 (14.41,72.68) 0.004*
  1. CBHD: Community-Based Haemodialysis; HD: Haemodialysis; PF: Physical Functioning; RP: Role Physical; BP: Bodily Pain; GH: General Health; VT: Vitality; CI: Confidence Interval
  2. *Significant with p-value < 0.05
  3. aTarget: Kt/V ≥ 1.8 for 2 HD sessions per week or Kt/V ≥ 1.2 for 3 HD sessions per week or Kt/V ≥ 3.6 for weekly data