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Measurement Properties of the 15-Item Singapore Caregiver Quality of Life Scale (SCQOLS-15) in Family Caregivers of Patients with Heart Diseases

Author

Listed:
  • Mihir Gandhi

    (Consortium for Clinical Research and Innovation Singapore
    Duke-NUS Medical School
    Duke-NUS Medical School
    Tampere University)

  • Ru-San Tan

    (National Heart Centre Singapore)

  • Shir Lynn Lim

    (National University Heart Centre
    National University of Singapore
    Duke-NUS Medical School)

  • Irene Teo

    (Duke-NUS Medical School
    National Cancer Centre Singapore)

  • Grace Yang

    (Duke-NUS Medical School
    National Cancer Centre Singapore)

  • Kai Lee Woo

    (National University Heart Centre)

  • Yin Bun Cheung

    (Duke-NUS Medical School
    Tampere University)

Abstract

Purpose To evaluate the measurement properties of the 15-item Singapore Caregiver Quality of Life Scale (SCQOLS-15) in family caregivers of patients with heart diseases. Methods The SCQOLS-15 survey was self-administered by family caregivers of patients with chronic heart diseases, at baseline and 1 week later. The criterion validity of SCQOLS-15 and its domain scores was assessed by calculating the Spearman correlation coefficient (ρ) with the Brief Assessment Scale for Caregivers (BASC), Caregiver Reaction Assessment (CRA), and their sub-scores. Known-group validity was assessed using the New York Heart Association (NYHA) functional class. Test-retest reliability was evaluated using the intraclass correlation coefficient (ICC). Results Of the 327 caregivers included, 65% were adult children and 28% were spouses. The distribution of NYHA classes of the patients was I: 27%, II: 40%, III: 24%, and IV: 9%. There was a positive correlation between the SCQOLS-15 and BASC total scores (ρ = 0.7). SCQOLS-15 domain scores were also correlated with BASC and CRA sub-scores as per a priori hypotheses, with absolute values of ρ ranging from 0.4 to 0.6. The mean values of SCQOLS-15 total and all domain scores were lower among caregivers of patients with NYHA class III/IV compared to those of class I/II patients (each P

Suggested Citation

  • Mihir Gandhi & Ru-San Tan & Shir Lynn Lim & Irene Teo & Grace Yang & Kai Lee Woo & Yin Bun Cheung, 2023. "Measurement Properties of the 15-Item Singapore Caregiver Quality of Life Scale (SCQOLS-15) in Family Caregivers of Patients with Heart Diseases," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 16(5), pages 485-495, September.
    • Handle: RePEc:spr:patien:v:16:y:2023:i:5:d:10.1007_s40271-023-00634-x
    DOI: 10.1007/s40271-023-00634-x
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