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

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)

	B	95% CI for B	P value
Physical Component Summary score^a
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 score^b
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

CI confidence interval, KDQOL-SF™ Kidney Disease Quality of Life Short Form, MCS Mental Component Summary, PCS Physical Component Summary, vs versus
^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
^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

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