ArticleClinical nephrology2025
The incidence and prevalence of immunoglobulin A nephropathy in the United States.
Article in Clinical nephrology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- An observational study of patients receiving delayed-release budesonide (Nefecon) for immunoglobulin A nephropathy in the United States: A case series of Asian-American patients.Clinical nephrology · 2026Observational
- The effectiveness and value of B-cell-directed therapies for the treatment of immunoglobulin A nephropathy.Journal of managed care & specialty pharmacy · 2026Article
- Global and national public awareness and interest in glomerular diseases from 2004 to 2024.Frontiers in nephrology · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsReliable national estimates for the incidence and prevalence of immunoglobulin A nephropathy (IgAN) in the United States (U.S.) are needed. We performed a national survey with pathologists and used insurance claims data to estimate IgAN frequency nationwide. MATERIALS AND
methodsAn online survey with pathologists was conducted between November and December 2021 to obtain data on the number and types of biopsies evaluated and the proportion with IgAN confirmed. Biopsy data were extrapolated to two different claims databases to estimate incidence and prevalence. Results were validated against a separate dataset of electronic health records.
resultsA total of 43 pathologists from across U.S. regions reported evaluating a mean of 169 kidney biopsies (standard deviation 179.1) in the past 12 months. Of the 7,267 total biopsies evaluated, 632 (8.7%) were IgAN. Based on the respective claims databases, annual incidence rates of 2.1 and 2.2 per 100,000 and prevalence rates of 59.9 and 62.7 per 100,000 were estimated. Results from the validation dataset were similar, with an incidence of 1.9 per 100,000 and prevalence of 54.2 per 100,000.
conclusionThis study estimated incidence and prevalence of IgAN. Extrapolating the findings to the U.S. population for 2021, total prevalence was 198,887 - 208,184 persons.
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