Table 2.
Baseline and postintervention self-reported dietary nonadherence and dietary knowledge (n=23).
| Questionnaire | Baseline | Postintervention | Cohen d (95% CI) | P value | ||
| DDFQa, overall | ||||||
|
|
Nonadherence (days), mean (SD) | 3.2 (4.5) | 2.0 (3.0) | 0.33 (–0.25 to 0.91) | .32 | |
|
|
Nonadherence (degree), n (%) | |||||
|
|
|
No deviation (0) | 11 (48) | 11 (11) | —b | — |
|
|
|
Mild (1) | 5 (22) | 4 (4) | — | — |
|
|
|
Moderate (2) | 4 (17) | 7 (7) | — | — |
|
|
|
Severe (3) | 2 (9) | 1 (1) | — | — |
|
|
|
Very severe (4) | 1 (4) | 0 (0) | — | — |
| DDFQ, phosphorus | ||||||
|
|
Nonadherence (days), mean (SD) | 1.1 (3.2) | 1.9 (3.0) | 0.25 (0.33 to 0.83) | .45 | |
|
|
Nonadherence (degree), n (%) | |||||
|
|
|
No deviation (0) | 19 (83) | 10 (44) | — | — |
|
|
|
Mild (1) | 1 (4) | 5 (22) | — | — |
|
|
|
Moderate (2) | 2 (9) | 7 (30) | — | — |
|
|
|
Severe (3) | 0 (0) | 1 (4) | — | — |
|
|
|
Very severe (4) | 1 (4) | 0 (0) | — | — |
| KnQc, mean (SD) | ||||||
|
|
% Overall knowledge (>18 questions) | 51.4 (13.9) | 68.1 (13.3) | 1.22 (0.59 to 1.85) | <.001 | |
|
|
Knowledge of phosphorus content of food (>7 questions) | 47.8 (21.4) | 57.1 (12.2) | 0.54 (–0.05 to 1.12) | .06 | |
|
|
Knowledge of consequences of high levels of phosphorus (>4 questionnaire) | 43.5 (18.8) | 66.3 (20.8) | 1.15 (0.53 to 1.77) | <.001 | |
|
|
Knowledge of phosphate binders (>4 questions) | 48.9 (29.6) | 76.1 (24.4) | 1.00 (0.39 to 1.61) | <.001 | |
aDDFQ: Dialysis Diet and Fluid Questionnaire.
bNot applicable.
cKnQ: Knowledge Questionnaire.