Patient-Reported Quality of Life in Patients With an Implantable-Cardioverter Defibrillator - A Longitudinal Observational Study

General QoL assessed using the Short Form Health Survey (SF-12)

The SF-12 measures the experienced health or health-related quality of life. The SF-12 is a shortened version of the longer SF-36. This questionnaire consists of twelve items, divided into eight subcategories:

• General Health

• Physical Functioning
• Role Physical
• Role Emotional
• Bodily Pain
• Mental Health
• Vitality
• Social functioning For each subcategory, a score between 0 and 100 is calculated using an available key. This score can then be compared to an available normative population. Average values below 50 indicate poorer physical/mental health compared to that normative population, while values above 50 indicate better health.

The KCCQ-12 is a shortened, but validated version of the KCCQ-23, and measures symptoms, physical and social limitations, and quality of life in patients with heart failure.2 The 12 questions have variable answer options, but all are based on a Likert scale. KCCQ scores are scaled from 0 to 100 and frequently summarized in 25-point ranges, where scores represent health status as follows: 0 to 24: very poor to poor; 25 to 49: poor to fair; 50 to 74: fair to good; and 75 to 100: good to excellent.

Florida Shock Acceptance score (FSAS) The FSAS is intended to measure ICD shock anxiety.4 The measure was designed by an interdisciplinary team including electrophysiology and clinical psychology. Items were based on clinical experience with ICD patients. The scale itself consists of 10 items which respondents rate on a five-point Likert scale ranging from 1 (not at all) to 5 (all of the time). The score of the FSAS is determined by summing the items with higher values representing greater shock anxiety and lower values representing lower shock anxiety.

The primary endpoint of the cross-sectional QoL-ICD study is the ICD acceptance assessed using the Florida Patient Acceptance Survey (FPAS). The FPAS began as a self-report survey with 47 items composed with the help of experts on psychosocial functioning in device patients, an expert in the field of psychometrics, and a cardiac electrophysiologist.2 Information obtained through surveys and interviews were used as guidelines for item construction. The result is an 18 question survey. Of these 18 questions, there are 3 filler items which are still relevant for ICD patients and the remaining questions cover 4 domains: (1) Return to Function; (2) Device-Related Distress; (3) Positive Appraisal; and (4) Body Image Concerns. Items are rated on a 5-point scale from 1 (strongly disagree) to 5 (strongly agree). Scale scores were calculated for each of the factors. By combining the scores for each question, a total FPAS score can be calculated.

Steinke Sexual Concerns Inventory (SSCI, general cardiac version) The SSCI is an instrument that consists of 9 items reflecting change in the sexual relationship, sexual fears, change in sexual interest, symptoms associated with sexual activity, sexual dysfunction and any other sexual concerns.5 The items are rated on a scale of 0 to 3, where 0 indicates 'never' and 3 indicates 'frequently'. Higher scores indicate greater sexual concerns. Based on previous research, three potential subscales (sexual fears, symptoms, sexual dysfunction) were identified among the items.

The Concept of a Good Death measures three distinct domains, reflecting the psychosocial/spiritual, physical, and clinical aspects of a good death. The surveys comprises 17 questions on a 4-point Likert scale ranging from 'not at all' to 'essential'.