Background
Methods
Data collection and validity
The KCCQ-12
Statistical analyses
Results
Response rate and dropout analysis
Cohort characteristics at ICD implantation
n (%) | |
---|---|
Patients | 118 |
Mean age at implant (years) | 65.0 ± 10.4 |
Mean age at KCCQ (years) | 70.9 ± 9.8 |
Females | 20 (16.9) |
Ischemic etiology | 69 (58.5) |
Device type | |
ICD-VR | 16 (13.6) |
ICD-DR | 45 (38.1) |
CRT-D | 57 (48.3) |
Hypertension | 54 (45.8) |
Diabetes mellitus | 27 (22.9) |
Renal failure* | 16 (13.6) |
Atrial fibrillation | 35 (29.7) |
Beta-blockers | 106 (89.8) |
ACE-i/ARB | 111 (94.1) |
MRA | 75 (63.6) |
Cohort characteristics at follow-up
Health status measured by KCCQ-12
KCCQ-12 | All n = 118 Mean score | Ischemic HF n = 69 Mean score | Nonischemic HF n = 49 Mean score | Ischemic versus nonischemic HF p value |
---|---|---|---|---|
Physical limitation | 68.0 ± 26.4 | 64.6 ± 26.2 | 72.8 ± 26.1 | 0.062 |
Symptom frequency | 78.6 ± 21.1 | 77.2 ± 21.5 | 80.6 ± 20.5 | 0.305 |
Quality of life | 69.7 ± 25.7 | 68.8 ± 25.7 | 70.9 ± 25.8 | 0.582 |
Social limitation | 71.6 ± 27.0 | 68.8 ± 27.1 | 75.6 ± 26.7 | 0.144 |
Overall summary score | 71.5 ± 22.4 | 69.5 ± 23.1 | 74.4 ± 21.3 | 0.195 |
KCCQ-12 | All n = 118 Mean score | ICD-VR/DR n = 61 Mean score | CRT-D n = 57 Mean score | ICD-VR/DR versus CRT-D p value |
---|---|---|---|---|
Physical limitation | 68.0 ± 26.4 | 72.0 ± 23.3 | 63.7 ± 28.9 | 0.158 |
Symptom frequency | 78.6 ± 21.1 | 82.3 ± 20.5 | 74.8 ± 21.2 | 0.040 |
Quality of life | 69.7 ± 25.7 | 73.2 ± 25.2 | 66.0 ± 25.9 | 0.093 |
Social limitation | 71.6 ± 27.0 | 75.0 ± 27.5 | 68.0 ± 26.3 | 0.096 |
Overall summary score | 71.5 ± 22.4 | 75.1 ± 22.0 | 67.7 ± 22.4 | 0.041 |
Age
KCCQ-12 | 32–59 years (n = 10) | 60–69 years (n = 42) | 70–79 years (n = 42) | ≥ 80 years (n = 24) | Kruskal–Wallis test |
---|---|---|---|---|---|
Mean score | Mean score | Mean score | Mean score | p value | |
Physical limitation | 75.8 ± 8.1 | 71.7 ± 24.9 | 67.5 ± 26.7 | 59.0 ± 27.5 | 0.164 |
Symptom frequency | 80.1 ± 22.1 | 84.7 ± 19.7 | 75.7 ± 19.6 | 72.5 ± 23.8 | 0.046 |
Quality of life | 66.3 ± 28.3 | 72.9 ± 27.2 | 67.3 ± 24.4 | 69.8 ± 25.0 | 0.520 |
Social limitation | 82.5 ± 22.7 | 72.0 ± 28.1 | 70.1 ± 25.1 | 69.1 ± 30.4 | 0.564 |
Overall summary score | 75.6 ± 22.6 | 74.4 ± 22.9 | 69.6 ± 21.7 | 68.2 ± 23.0 | 0.402 |
Sex
Subgroup analysis of the KCCQ-12
KCCQ-12 | Atrial fibrillation n = 35 | Appropriate therapy n = 16 | Inappropriate shock n = 5 | Complications n = 16 | ||||
---|---|---|---|---|---|---|---|---|
Mean difference | p value | Mean difference | p value | Mean difference | p value | Mean difference | p value | |
Physical limitation | − 10.0 | 0.051 | 9.9 | 0.238 | − 17.0 | 0.187 | 4.5 | 0.782 |
Symptom frequency | − 12.0 | 0.006 | 2.4 | 0.946 | − 18.6 | 0.098 | − 0.4 | 0.864 |
Quality of life | − 8.2 | 0.119 | 0.7 | 0.795 | − 18.0 | 0.168 | 2.5 | 0.898 |
Social limitation | − 13.5 | 0.006 | 3.9 | 0.958 | − 29.6 | 0.015 | 1.5 | 0.930 |
Overall summary score | − 10.9 | 0.004 | 3.6 | 0.841 | − 21.8 | 0.031 | 2.0 | 0.925 |