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Table 3 Construct Validity: HFaST Scores for Asymptomatic Patients Per the KCCQ-12 on Study Day 4

From: Development, psychometric evaluation, and initial feasibility assessment of a symptom tracker for use by patients with heart failure (HFaST)

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)
  1. HFaST Heart Failure Symptom Tracker Questionnaire, KCCQ-12 Kansas City Cardiomyopathy Questionnaire Short Form