Disability Severity and Home-Based Care Quality in Older Adults: The Mediating Effects of Social Support and Caregiver Competence.

The design was cross-sectional, so it cannot show that disability severity causes lower care quality or that changes in social support or caregiver task difficulty would improve care quality. Longitudinal data were not collected, so the study cannot show how home-based care quality changes over time. Home-based care quality for the family dimension was reported by the primary informal caregiver, so it may not reflect the views of all family members. The sample came from two low-income rural counties in one region of China, so the associations may not apply to other settings. All measures were self-reported questionnaires, and the caregiver competence scale scored task difficulty rather than observed caregiving skill.

The authors declared no conflicts of interest. The supplied text does not state a funding source.

Do not read the mediation percentages as proof that increasing social support or training caregivers will improve care quality. The study was cross-sectional and used self-report, so it shows associations, not effects.