Predictors of quality of life among caregivers of patients with moderate to severe kidney disease: an Australian cross-sectional study.

Background: Little is known about the quality of life (QoL) of caregivers of patients with chronic kidney disease (CKD) along the disease continuum. We investigated factors associated with low QoL among caregivers of patients with CKD including those on dialysis. We also examined the relationship between kidney disease severity and the QoL of caregivers.

Methods: We recruited caregivers of patients with CKD (stage 3 to 5) attending renal outpatient clinics as well as dialysis units of a tertiary hospital and patients from January 2018 to November 2023. Quality of life was assessed using a valid and reliable tool, the Adult Carer Quality of Life Questionnaire. Logistic regression analyses were performed to determine factors associated with low QoL among caregivers.

Results: A total of 278 dyads of caregivers and patients were studied with a mean age of 56.6 ± 15.2 and 63.7 ± 15.3 years respectively. The proportion of caregivers reporting low to mid-range QoL scores ranged from 37 to 73.3% across the eight domains, with 48% having low to mid-range overall QoL scores. The severity of CKD had no impact on overall QoL of caregivers in the personal growth and carer satisfaction domains where caregivers of patients on dialysis reported worse scores compared to caregivers of predialysis patients. Female gender of caregivers and patients, longer caregiving time, diagnosis of diabetes and lower socioeconomic status of patients were all associated with lower scores in one or more domains.

Conclusion: This study identified several factors associated with low QoL among caregivers of patients with CKD. An understanding of these factors provides insight into the development of targeted interventions to improve the QoL of caregivers.