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Table 4 Multiple linear regression models of the PCS and MCS from KDQOL-SF™ in patients choosing dialysis but not yet started on dialysis (n = 39), in patients started on dialysis (n = 34), and in patients choosing conservative care (n = 23)

From: Value-based evaluation of dialysis versus conservative care in older patients with advanced chronic kidney disease: a cohort study

  B 95% CI for B P value
Physical Component Summary scorea
 Constant 41.31 32.54 to 50.09  
 Female vs. Male −10.01 −18.28 to − 1.73 0.02
 Interviewer-administration vs. Self-administration 14.23 5.63 to 22.84 0.001
 Not yet started on dialysis vs. Conservative care 15.24 5.46 to 25.03 0.003
 Started on dialysis vs. Conservative care 1.58 −8.87 to 12.04 0.76
Mental Component Summary scoreb
 Constant 48.82 41.30 to 56.34  
 Interviewer-administration vs. Self-administration 20.49 12.41 to 28.57 <  0.001
 Not yet started on dialysis vs. Conservative care 16.03 6.90 to 25.16 0.001
 Started on dialysis vs. Conservative care 2.01 −7.67 to 11.69 0.68
  1. CI confidence interval, KDQOL-SF™ Kidney Disease Quality of Life Short Form, MCS Mental Component Summary, PCS Physical Component Summary, vs versus
  2. a= Physical Component Summary score model: R2 = 0.22, F(4,91) = 6.36, P <  0.001. Results were similar when additionally adjusted for age and Davies comorbidity score
  3. b= Mental Component Summary score model: R2 = 0.28, F(3,91) = 11.77, P <  0.001. Results were similar when additionally adjusted for age, sex, and Davies comorbidity score