Table 2.
Item Analysis for the EHFScB-9 in a U.S. Sample (n=200)
| Item | Mean ± SD | Item-total correlation‡ | α if deleted | Distribution of Item Responses
|
Item Discrimination | ||||
|---|---|---|---|---|---|---|---|---|---|
| completely agree | don’t agree at all | ||||||||
| 1 | 2 | 3 | 4 | 5 | |||||
| I weigh myself every day | 2.02±1.41 | 0.453 | 0.79 | 58.0% | 10.5% | 14.5% | 5.5% | 11.5% | 0.47 |
| If my shortness of breath increases † | 1.94±1.23 | 0.636 | 0.76 | 56.0% | 13.0% | 16.0% | 11.0% | 4.0% | 0.70 |
| If my feet/legs become swollen † | 2.06±1.30 | 0.638 | 0.76 | 50.8% | 15.1% | 19.1% | 7.5% | 7.5% | 0.71 |
| If I gain 5 pounds in one week † | 1.97±1.32 | 0.645 | 0.76 | 56.1% | 15.7% | 12.1% | 8.1% | 8.1% | 0.68 |
| I limit the amount of fluids I drink | 2.05±1.19 | 0.461 | 0.79 | 46.7% | 18.6% | 22.1% | 8.0% | 4.5% | 0.67 |
| If I experience increased fatigue † | 2.49±1.36 | 0.618 | 0.77 | 33.0% | 20.5% | 22.5% | 13.0% | 11.0% | 0.92 |
| I eat a low salt diet | 1.67±0.97 | 0.429 | 0.79 | 59.5% | 22.0% | 13.0% | 3.5% | 2.0% | 0.54 |
| I take my medications as prescribed | 1.13±0.44 | 0.246 | 0.81 | 90.5% | 6.5% | 2.5% | 0.5% | 0.0% | 0.12 |
| I exercise regularly | 2.88±1.40 | 0.341 | 0.80 | 22.3% | 19.3% | 23.4% | 17.8% | 17.3% | 0.68 |
†
I contact my doctor or nurse
‡
Corrected item-total correlation
Abbreviations: EHFScB-9 = European Heart Failure Self-care Behaviors Scale; SD = standard deviation