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Table 4 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

  SF RE MH PCS MCS
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) 4.70 (-4.69,14.08) 0.325 9.93 (2.00,17.85) 0.014* −1.48 (-7.94,4.97) 0.651 7.55 (4.40,10.70) < 0.001* −0.17 (-3.06,2.73) 0.910
Age −0.11 (-0.50,0.28) 0.587 −0.11 (-0.44,0.22) 0.508 −0.09 (-0.35,0.18) 0.527 −0.04 (-0.17,0.09) 0.517 −0.07 (-0.19,0.05) 0.240
Educational level (No fomal education)                
Primary 0.17 (-17.37,17.70) 0.985 −4.67 (-19.48,10.13) 0.534 3.84 (-8.22,15.89) 0.531 −0.63 (-6.52,5.25) 0.832 0.77 (-4.63,6.18) 0.778
Secondary −8.66 (-26.05,8.74) 0.328 −12.90 (-27.59,1.78) 0.085 2.69 (-9.27,14.65) 0.658 −1.82 (-7.66,4.02) 0.539 −2.03 (-7.40,3.33) 0.455
Tertiary −5.60 (-26.83,15.63) 0.603 −6.50 (-24.42,11.43) 0.475 6.28 (-8.32,20.87) 0.397 −2.46 (-9.59,4.66) 0.496 1.18 (-5.37,7.72) 0.724
Married (vs. Unmarried) 1.47 (-7.63,10.57) 0.751 2.25 (-5.44,9.93) 0.565 −1.71 (-7.97,4.54) 0.590 1.87 (-1.19,4.92) 0.229 1.34 (-1.46,4.15) 0.347
Smoker (vs. Non-smoker) 15.42 (-3.95,34.78) 0.118 4.72 (-11.62,21.07) 0.569 10.22 (-3.09,23.53) 0.132 −7.27 (-13.76,-0.77) 0.029* 6.64 (0.67,12.62) 0.029*
Working (vs. Not working) 11.30 (0.06,22.54) 0.049* 11.17 (1.68,20.66) 0.021* 1.84 (-5.88,9.57) 0.638 4.60 (0.83,8.37) 0.017* 2.15 (-1.32,5.61) 0.223
CBHD, Yes (vs. No) 2.71 (-5.77,11.19) 0.530 8.54 (1.39,15.70) 0.020* 1.62 (-4.21,7.44) 0.585 4.77 (1.93,7.62) 0.001* 2.46 (-0.15,5.08) 0.065
Come alone/ accompanied for HD session, Accompanied by others (vs. Alone) −5.64 (-18.74,7.47) 0.397 −1.79 (-12.85,9.28) 0.750 −2.89 (-11.90,6.12) 0.528 −3.34 (-7.74,1.05) 0.135 0.98 (-3.06,5.02) 0.633
Transportation to dialysis center (vs. Walk)                
Public transport −13.18 (-28.82,2.47) 0.098 3.50 (-9.71,16.71) 0.602 −2.30 (-13.06,8.46) 0.674 0.66 (-4.59,5.91) 0.804 −0.21 (-5.03,4.61) 0.931
Taxi/ others −11.47 (-29.77,6.83) 0.218 8.25 (-7.20,23.70) 0.294 −2.80 (-15.38,9.79) 0.661 −1.39 (-7.53,4.75) 0.655 0.09 (-5.56,5.73) 0.976
Clinical and Co-morbidity information                
Kt/V,Targeta achieved (vs. Targeta not achieved) −3.77 (-13.06,5.53) 0.425 1.18 (-6.67,9.02) 0.768 −4.33 (-10.72,2.06) 0.183 −0.42 (-3.54,2.69) 0.789 −0.43 (-3.30,2.43) 0.766
Blood haemogloblin, ≥ 9 g/dL (vs. < 9 g/dL) −5.06 (-14.94,4.83) 0.314 −2.74 (-11.08,5.61) 0.518 −0.80 (-7.60,5.99) 0.816 0.86 (-2.46,4.18) 0.609 −0.09 (-3.14,2.96) 0.954
Comorbidities, Yes (vs. No) 2.32 (-7.74,12.39) 0.649 −3.51 (-12.00,4.99) 0.416 −0.15 (-7.07,6.77) 0.965 −0.30 (-3.68,3.07) 0.860 1.91 (-1.19,5.02) 0.225
Constant 98.58 (63.47,133.69) < 0.001* 79.74 (50.10,109.39) < 0.001* 83.43 (59.29,107.57) < 0.001* 38.35 (26.57,50.13) < 0.001* 55.58 (44.75,66.41) < 0.001*
  1. CBHD: Community-Based Haemodialysis; HD: Haemodialysis; SF: Social Functioning; RE: Role Emotional; MH: Mental Health; PCS: Physical Component Summary; MCS: Mental Component Summary; 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