Table 3 Construct Validity: HFaST Scores for Asymptomatic Patients Per the KCCQ-12 on Study Day 4
KCCQ-12: Symptom-free subgroup | HFaST Score | Did not experience in the past 24 h, n (%) | Much better than usual, n (%) | Somewhat better than usual, n (%) | Slightly better than usual, n (%) | About the same as usual, n (%) | Slightly worse than usual, n (%) | Somewhat worse than usual, n (%) | Much worse than usual, n (%) | Missing n (%) |
|---|---|---|---|---|---|---|---|---|---|---|
No fatigue (Item 3), n (%) | HFaST 1 Fatigue or low energy level when performing everyday activities | 10 (76.9) | 1 (7.7) | 0 (0) | 1 (7.7) | 1 (7.7) | 0 (0) | 0 (0) | 0 (0) | 0 (0.0) |
HFaST 2 Fatigue or low energy level even while sitting or lying down | 11 (84.6) | 1 (7.7) | 0 (0) | 1 (7.7) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0.0) | |
No shortness of breath (Item 4), n (%) | HFaST 3 Shortness of breath when performing everyday activities | 15 (75.0) | 3 (15.0) | 0 (0) | 1 (5.0) | 1 (5.0) | 0 (0) | 0 (0) | 0 (0) | 0 (0.0) |
HFaST 4 Shortness of breath at rest | 16 (80.0) | 2 (10.0) | 1 (5.0) | 1 (5.0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0.0) | |
No pillows (Item 5), n (%) | HFaST 5 Shortness of breath while lying down or reclining (for example, needing to add pillows or move to a recliner to sleep) | 37 (72.5) | 1 (2.0) | 2 (3.9) | 2 (3.9) | 9 (17.6) | 0 (0) | 0 (0) | 0 (0) | 1 (1.9) |
No swelling (Item 2), n (%) | HFaST 8 Swelling of feet, ankles, legs, or abdomen; shoes or waistband feeling tight | 26 (78.8) | 2 (6.1) | 1 (3.0) | 1 (3.0) | 3 (9.1) | 0 (0) | 0 (0) | 0 (0) | 0 (0.0) |