Table 2.
Change score analysis: change in scores from baseline preintervention (pre) to post intervention (post).
| Scale | Intervention group (n=14) | Pre-post difference, mean (95% CI) | Control group (n=14) | Pre-post difference, mean (95% CI) | Mann-Whitney U test | P value | Effect size (d) | ||
| Pre, mean (SD) | Post, mean (SD) | Pre, mean (SD) | Post, mean (SD) | ||||||
| DHFKa | 12.5 (1.1) | 12.9 (1.3) |
0.35 (–0.67 to 1.3) | 12.2 (2.4) | 12.8 (1.7) | 0.57 (–0.05 to 1.2) | 91.5 | .75 | 0.06 |
| SCHFIb (maintenance) | 61.9 (20.9) | 71.9 (15.1) | 9.9 (–3.6 to –23.6) | 70.2 (17.4) | 66.6 (17.7) | –3.5 (–10.3 to 1.3) | 59.5 | .07 | 0.32 |
| SCHFI (confidence) | 67.1 (20.3) | 73.0 (18.0) | 3.8 (–4.3 to 12.0) | 65.5 (21.4) | 69.9 (19.2) | 3.8 (–4.3 to 12.0) | 89.5 | .94 | 0.16 |
| SEMCDc | 7.3 (1.6) | 8.0 (1.7) | 0.70 (–0.54 to 1.9) | 7.1 (1.4) | 7.4 (1.5) | 0.35 (–0.21 to 0.92) | 87.0 | .61 | 0.37 |
aDHFK: Dutch Heart Failure Knowledge Scale.
bSCHFI: Self-Care of Heart Failure Index.
cSEMCD: Self-Efficacy for Managing Chronic Disease Scale.