Abstract
Background
To evaluate impact of anemia on health-related quality of life (HRQOL) over time in a large pediatric cohort with mild-to-moderate chronic kidney disease (CKD).
Methods
Participants were enrolled in the Chronic Kidney Disease in Children Study (CKiD), a multicenter, longitudinal cohort. HRQOL was measured using the Pediatric Quality of Life Inventory (PedsQL). Anemia was defined as hemoglobin < 5th percentile for age, sex, and race. Two longitudinal analyses were conducted on consecutive visit pairs. Models examined effects of anemia status on both HRQOL score over time and change in HRQOL score between consecutive visits. The sample included 733 children with a median estimated GFR 54 ml/min/1.73 m2. Thirty percent of children had anemia at index visit.
Results
Analysis of HRQOL scores revealed the presence of anemia was associated with significantly lower overall HRQOL (β = − 2.90 (95% CI = − 7.74, − 0.21), p = 0.04) and physical functioning (β = − 5.72 (− 9.49, − 2.25), p = 0.001) according to children. On parent ratings, the development of anemia was associated with lower emotional functioning scores (β = − 4.87 (− 8.72, − 0.11), p = 0.045). In the second model, children who developed anemia were rated by caregivers as having more decreased physical functioning than children who remained anemia-free (β = − 3.30 per year (− 5.83, − 0.76), p = 0.01). Caregivers did not observe declines in their children’s other PedsQL subscales in the presence of developed anemia. Children with resolved or persistence did not show improvement or decline in any aspect of HRQOL functioning relative to non-anemic subjects.
Conclusions
In children with CKD, anemia has an adverse effect on HRQOL which persists over time but does not appear to be progressive.
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Abbreviations
- CKD:
-
chronic kidney disease
- CKiD:
-
Chronic Kidney disease in Children Study
- ESA:
-
erythropoietin stimulating agents
- GFR:
-
glomerular filtration rate
- HRQOL:
-
health-related quality of life
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Acknowledgments
Data in this manuscript were collected by the Chronic Kidney Disease in children prospective cohort study (CKiD) with clinical coordinating centers (Principal Investigators) at Children’s Mercy Hospital and the University of Missouri—Kansas City (Bradley Warady, MD) and Children’s Hospital of Philadelphia (Susan Furth, MD, PhD), Central Biochemistry Laboratory (George Schwartz, MD) at the University of Rochester Medical Center, and data coordinating center (Alvaro Muñoz, PhD and Derek Ng, PhD) at the Johns Hopkins Bloomberg School of Public Health.
Funding
The CKiD Study is supported by grants from the National Institute of Diabetes and Digestive and Kidney Diseases, with additional funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development, and the National Heart, Lung, and Blood Institute (U01-DK-66143, U01-DK-66174, U24-DK-082194, U24-DK-66116). The CKiD website is located at https://statepi.jhsph.edu/ckid
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Carlson, J., Gerson, A.C., Matheson, M.B. et al. A longitudinal analysis of the effect of anemia on health-related quality of life in children with mild-to-moderate chronic kidney disease. Pediatr Nephrol 35, 1659–1667 (2020). https://doi.org/10.1007/s00467-020-04569-5
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DOI: https://doi.org/10.1007/s00467-020-04569-5