Table 3.
Health-related quality of life
| Instrument | Primary Analysis Population, n=4470a | Full Analysis Population, n=7035 | ||
|---|---|---|---|---|
| Intervention, n=1938 | Usual Care, n=2532 | Intervention, n=3069 | Usual Care, n=3966 | |
| SF36-SF PCS | ||||
| N | 531 | 698 | 915 | 1166 |
| Baseline | 37.7 (10.9) | 37.9 (10.6) | 37.4 (10.8) | 38.0 (11.1) |
| Follow-up | 37.9 (10.4) | 37.8 (10.9) | 37.6 (10.7) | 37.9 (11.1) |
| P value for changeb | 0.63 | 0.53 | ||
| SF36-SF MCS | ||||
| N | 531 | 698 | 915 | 1166 |
| Baseline | 49.9 (12.0) | 51.5 (10.9) | 50.0 (11.8) | 51.0 (11.2) |
| Follow-up | 51.0 (11.1) | 51.5 (10.6) | 50.8 (11.2) | 51.4 (10.6) |
| P value for changeb | 0.16 | 0.36 | ||
| SF36-SF effect | ||||
| N | 532 | 696 | 919 | 1167 |
| Baseline | 74.4 (22.8) | 78.0 (20.7) | 74.2 (22.2) | 76.6 (21.0) |
| Follow-up | 78.4 (19.6) | 79.7 (19.3) | 76.4 (21.0) | 77.5 (20.2) |
| P value for changeb | 0.07 | 0.22 | ||
| SF36-SF burden | ||||
| N | 533 | 698 | 920 | 1168 |
| Baseline | 51.2 (29.3) | 54.0 (29.2) | 50.5 (28.7) | 52.9 (28.8) |
| Follow-up | 53.0 (28.7) | 54.9 (29.0) | 51.9 (28.3) | 53.2 (29.1) |
| P value for changeb | 0.62 | 0.48 | ||
| SF36-SF symptoms | ||||
| N | 533 | 696 | 920 | 1166 |
| Baseline | 79.0 (16.0) | 80.9 (14.8) | 78.9 (15.7) | 80.5 (15.3) |
| Follow-up | 80.2 (14.6) | 81.0 (14.0) | 79.5 (14.6) | 80.5 (14.8) |
| P value for changeb | 0.48 | 0.52 | ||
SF36-SF, Kidney Disease Quality of Life Short Form-36; PCS, physical component score; MCS, mental component score; effect, effect of kidney disease scale; burden, burden of kidney disease scale; symptoms, symptoms and problems scale.
a
As part of routine clinical care, patients are asked to complete the SF36-SF within 4 months after initiation of dialysis and annually thereafter.
b
Generated from linear-effects models with facility as a random effect.