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Prevalence and Treatment Patterns of Anaemia in Individuals With Chronic Kidney Disease Across Asia: A Systematic
Dana Kim1,2, Joshua Lee3, Tadashi Toyama4
1The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia.
Aim:
Anaemia is a significant complication of chronic kidney disease (CKD). However, its prevalence and treatment patterns in Asia are poorly understood. We sought to quantify prevalence of anaemia and its treatment in people with CKD across the region.
Methods:
MEDLINE and Embase (inception to 2023) were systematically searched for observational studies of adults with CKD conducted in Asia that reported the prevalence of anaemia or its treatment. Additional relevant unpublished data were obtained from national experts. Summary estimates of the prevalence of anaemia and its treatment were determined using a random-effects meta-analysis according to country and study-specific CKD inclusion criteria.
Results:
Eighty-six studies from 10 Asian countries reported data on 1 342 121 participants. The overall prevalence of anaemia in individuals with CKD was 42% (95% CI 33%-52%), with wide variation (12%-57% in studies including all CKD stages; 21%-96% in studies limited to individuals with kidney failure). Anaemia prevalence progressively increased with more advanced CKD (80% in Stage 5). Studies reporting data on anaemia treatment, particularly in early CKD, were limited. The prevalence of erythropoietin-stimulating agents (ESAs) and iron therapy was 40% (95% CI 24%-58%) and 21% (95% CI 14%-31%), respectively (ESA: 7%-29% in CKD, 63%-95% in kidney failure; iron: 6%-26% in CKD, 15%-88% in kidney failure).
Conclusion:
Our findings indicate a significant, but widely varying, prevalence of anaemia and its treatment in people with CKD in Asia. Substantial variability in data availability and collection highlights the need for standardised reporting to facilitate the development of regionally relevant strategies for anaemia management in CKD.
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