Skip to main content

Table 3 Baseline ceiling, floor effects, and Cronbach’s alpha coefficients of the KCCQ and SF-36 scales, MAHFER study

From: Validation of heart failure quality of life tool and usage to predict all-cause mortality in acute heart failure in Uganda: the Mbarara heart failure registry (MAHFER)

HQOL measure Mean (SD) Median (IQR) % Floor effect % Ceiling effect Inter-item correlation Cronbach’s alpha coefficients
KCCQ
 Physical limitation 12.6 (18.9) 0 (0, 25) 59.9 2.5 0.46 0.83
 Symptom stability 51.5 (21.1) 55 (30, 70) 0.1 8.7 0.51 0.86
 Symptom frequency 38.4 (22.9) 31 (25, 50) 3.5 1.0 0.39 0.79
 Symptom burden 40.6 (24.7) 33 (25, 50) 3.5 3.0 0.40 0.80
 Total symptom score 39.5 (23.8) 33 (25, 50) 3.5 1.0 0.48 0.85
 Self-efficacy 58.7 (21.7) 75 (50, 75) 23.5 10.4 0.47 0.84
 Quality of life 23.1 (16.1) 25 (12, 25) 14.8 1.0 0.45 0.83
 Social limitation 11.9 (18.7) 0 (0, 25) 61.7 2.0 0.99 0.99
 Clinical summary score 26.0 (18.6) 20 (12, 38) 3.55 0.5 0.58 0.87
SF-36
 Physical functioning 23.6 (18.5) 20 (5, 40) 0.5 3.7 0.30 0.78
 Physical limitation 4.4 (15.5) 0 (0, 0) 89.1 3.6 0.28 0.75
 Emotional limitation 9.6 (14.4) 12.5 (0, 12) 48.7 3.7 0.27 0.75
 Bodily pain 24.5 (19.9) 10 (10, 42) 7.5 23.7 0.29 0.76
 General health 39.8 (10.7) 40 (30, 45) 2.1 4.7 0.35 0.81
 Mental health 32.3 (9.3) 32 (26, 38) 1.0 99 0.29 0.77
 Social functioning 40.9 (20.1) 37 (25, 62) 23.3 92.2 0.31 0.79
 Energy fatigue 38.5 (15.3) 35 (30, 50) 0.5 3.6 0.34 0.81
 Physical health 22.7 (10.8) 21 (16, 26) 1.3 26.1 0.23 0.71
\