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Table 2 HRQOL scores of CBHD, HBHD patients and age-sex adjusted HK general population

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

SF-12v2 Overall HD patientsa (n = 233) Age-sex adjusted HK general populationa (n = 233) P-value Effect sizeb CBHD patients (n = 110) HBHD patients (n = 134) P-value for ANOVA Significant difference***
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Physical functioning 66.85 (32.55) 83.91 (26.03) <0.001* 0.58 73.64 (29.68) 61.38 (34.09) <0.001** 3 > 1 > 2
Role physical 71.35 (31.01) 79.08 (26.07) 0.004* 0.27 71.48 (32.27) 71.36 (30.11) 0.015** 3 > 2
Bodily pain 70.71 (31.62) 78.54 (25.97) 0.004* 0.27 77.50 (32.12) 64.93 (30.21) <0.001** 1, 3 > 2
General health 37.55 (25.78) 46.93 (29.82) <0.001* 0.34 41.36 (24.99) 35.00 (26.51) <0.001** 3 > 2
Vitality 57.40 (24.15) 61.91 (29.09) 0.070 0.17 55.68 (24.10) 58.96 (24.02) 0.123  
Social functioning 77.25 (29.69) 81.97 (24.94) 0.064 0.17 78.18 (31.42) 77.43 (28.08) 0.242  
Role emotional 78.54 (25.42) 77.25 (23.01) 0.567 0.05 81.36 (25.10) 76.40 (24.94) 0.228  
Mental health 75.00 (19.97) 70.06 (18.92) 0.006* 0.25 75.34 (21.11) 74.81 (19.08) 0.020**  
Physical component summary score 42.77 (11.11) 47.50 (11.82) <0.001* 0.41 45.71 (11.02) 40.26 (10.89) <0.001** 1, 3 > 2
Mental component summary score 54.68 (9.14) 49.82 (10.41) <0.001* 0.50 55.51 (7.96) 54.15 (9.94) <0.001** 1, 2 > 3
  1. HRQOL: Health-related Quality of Life; CBHD: Community-Based Haemodialysis; HBHD: Hospital-Based Haemodialysis; HK: Hong Kong
  2. aOf 2,831 respondents in the study of population norm of the SF-12v2 in Hong Kong, 233 HD patients were matched to 233 general population subjects with sex and exact age. 11 subjects could not be matched
  3. bCohen’s d effect size between HD patients (overall) and HK general population
  4. *Significant difference between HD patients (overall) and HK general population (P < 0.05)
  5. **Significant difference between three groups (P < 0.05) by one-way ANOVA: Group 1, CBHD; Group 2, HBHD; Group 3, Hong Kong general population
  6. ***Significant difference between groups by post hoc Tukey’s HSD test (P < 0.05)