Table 3.

The Choice of Renal Replacement Therapy metrics expressed as median (25th; 75th percentiles) for patients with missing cognitive testing data and patients with full cognitive testing data

CORETH Metrics (19)aSample with Missing CT Data, n=366Sample with Full CT Data, n=401P Value
CCIb7.0 (5.0; 8.0)5.1 (3.0; 6.5)<0.001
Self-assessed comorbidityc9.0 (6.0; 13.0)8.0 (5.0; 12.0)0.01
Physical QoLd34.1 (26.9; 42.7)39.5 (32.4; 48.0)<0.001
Distance to dialysis unite10.0 (4.1; 16.8)14.0 (7.0; 23.0)<0.001
Living spacef79.0 (60.0; 110.0)86.0 (61.2; 122.3)0.003
Size of social networkg2.0 (2.0; 4.0)3.0 (2.0; 6.0)<0.001
Persons living in same householdh1.0 (0.0; 1.0)1.0 (1.0; 2.0)<0.001
Depressioni4.0 (2.0; 8.0)4.0 (2.0; 6.0)0.01
Participation preferencej27.8 (16.7; 44.4)38.9 (22.2; 55.6)<0.001
Shared decision makingk66.7 (11.1; 93.3)88.9 (60.0; 100.0)<0.001
  • The nonparametric Mann–Whitney U test was used to compare differences between groups. CORETH, Choice of Renal Replacement Therapy; CT, cognitive testing; CCI, Charlson Comorbidity Index; QoL, quality of life.

  • a Higher values indicate better outcomes. For the other CORETH metrics, no differences appeared (psychologic QoL, anxiety, social functioning and support, and treatment satisfaction [19]).

  • b CCI (minimum =0, maximum =37).

  • c Self-Administered Comorbidity Questionnaire German Version, Total Score (minimum =0, maximum =39).

  • d 12-Item Short Form Health Survey (SF-12) physical sum scale (minimum =0, maximum =100).

  • e Distance in kilometers.

  • f Living space in square meters.

  • g Number of persons in social network.

  • h Number of persons living in the same household.

  • i Hospital Anxiety and Depression Scale German Version, subscale depression (minimum =0, maximum =21).

  • j Autonomy Preference Index, subscale participation preference (minimum =0, maximum =100).

  • k Shared Decision–Making Questionnaire German Version (minimum =0, maximum =100).