The caregiver contribution to self-care of stroke inventory (CC-SCSI): evaluation of psychometric characteristics

Wenna Wang; Zhenxiang Zhang; Yongxia Mei; Bing Zhou; Dudu Zhang; Lamei Liu

doi:10.1186/s12912-024-01964-3

The caregiver contribution to self-care of stroke inventory (CC-SCSI): evaluation of psychometric characteristics

BMC Nurs. 2024 Apr 26;23(1):284. doi: 10.1186/s12912-024-01964-3.

Authors

Wenna Wang¹, Zhenxiang Zhang², Yongxia Mei³, Bing Zhou⁴, Dudu Zhang¹, Lamei Liu¹

Affiliations

¹ School of Nursing and Health, Zhengzhou University, Zhengzhou, Henan, China.
² School of Nursing and Health, Zhengzhou University, Zhengzhou, Henan, China. zhangzx6666@zzu.edu.cn.
³ School of Nursing and Health, Zhengzhou University, Zhengzhou, Henan, China. meiyongxia20072007@163.com.
⁴ School of Information Engineering, Zhengzhou University, Zhengzhou, Henan, China.

Abstract

Background: The caregiver contribution to self-care plays an important role in improving the health outcomes of chronic patients, which needs urgent attention. However, it has been hindered by the lack of a tailored instrument that assesses the caregiver contribution to self-care of stroke.

Objectives: To test the psychometric characteristics of the caregiver contribution to self-care of stroke Inventory (CC-SCSI) in health care practice.

Methods: Participants were recruited in Henan Province from March 2021 to October 2022, utilizing a multicenter stratified sampling approach. A 23-item self-report CC-SCSI with 3 separate scales measuring caregiver contribution to self-care maintenance of stroke, caregiver contribution to self-care monitoring of stroke and caregiver contribution to self-care management of stroke was tested for validity through discriminant validity, confirmatory factor analysis, concurrent validity and convergent validity. The reliability was tested by Cronbach's α coefficient and test-retest reliability. Qualitative data were analysed using thematic analysis. A STROBE checklist was used.

Results: The three scales of the CC-SCSI exhibited good discriminant validity. Confirmatory factor analysis supported the three-factor structure of the Caregiver Contribution to Stroke Self-Care Maintenance and Management scales and the one-factor structure of the Caregiver Contribution to Stroke Self-Care Monitoring scale. The moderate correlation between the CC-SCSI and the Self-Care of Stroke Inventory indicated acceptable concurrent validity. The moderate correlation between the CC-SCSI and the Caregiver Contribution to Self-Care of Chronic Illness Inventory indicated acceptable convergent validity. Cronbach's αs for the Caregiver Contribution to Self-Care Maintenance, Self-Care Monitoring, and Self-Care Management scales ranged from 0.876 to 0.974. Test-retest reliability showed average ICC values ranging from 0.828 to 0.903 (P < 0.001).

Conclusions: The 23-item CC-SCSI presents good psychometric properties and could be used to explore the caregiver contribution to stroke self-care in health care practice and research.

Keywords: Caregiver; Contribution; Nursing; Psychometric; Self-care; Stroke.