Evidence mapPaperPMID 41545824Full record

ArticleBMC nephrology2026

Treatment patterns, clinical outcomes, and economic burden among patients with immunoglobulin A nephropathy (IgAN) in China.

Youxia Liu, Yue Xing, Hongfen Li, Yan Qi, Sasikiran Nunna, Zhaoxin Chen, Yuelin Zhuang, Yilong Zhang, Wentian Lu, Jiaqi Kou and 3 more

Abstract readMulticenter Study
In one paragraph

Article in BMC nephrology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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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.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

13 authors.

Youxia LiuDepartment of Nephrology, Kidney Disease Medical Center, General Hospital, National Key Clinical Specialty, Tianjin Medical University, Tianjin Key Medical Discipline, Tianjin, China.
Yue XingDepartment of Nephrology, Kidney Disease Medical Center, General Hospital, National Key Clinical Specialty, Tianjin Medical University, Tianjin Key Medical Discipline, Tianjin, China.
Hongfen LiDepartment of Nephrology, Kidney Disease Medical Center, General Hospital, National Key Clinical Specialty, Tianjin Medical University, Tianjin Key Medical Discipline, Tianjin, China.
Yan QiDepartment of Nephrology, Kidney Disease Medical Center, General Hospital, National Key Clinical Specialty, Tianjin Medical University, Tianjin Key Medical Discipline, Tianjin, China.
Sasikiran NunnaOtsuka Pharmaceutical Development & Commercialization, Inc., Princeton, US.
Zhaoxin ChenZhejiang Otsuka Pharmaceutical Co., Ltd., Shanghai, China.
Yuelin ZhuangZhejiang Otsuka Pharmaceutical Co., Ltd., Shanghai, China.
Yilong ZhangOtsuka Pharmaceutical Co., Ltd., Tokyo, Japan.
Wentian LuIQVIA Real World Solutions, Shanghai, China.
Jiaqi KouIQVIA Real World Solutions, Shanghai, China.
Xiaoyu LinIQVIA Real World Solutions, Shanghai, China.
Li ZuoDepartment of Nephrology, Peking University People's Hospital, Beijing, China.
Tiekun YanDepartment of Nephrology, Kidney Disease Medical Center, General Hospital, National Key Clinical Specialty, Tianjin Medical University, Tianjin Key Medical Discipline, Tianjin, China. tjtiekun@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundImmunoglobulin A nephropathy (IgAN) is a major cause of kidney failure. This study aimed to investigate the treatment patterns, clinical outcomes, and economic burden of IgAN in China.

methodsThis was a retrospective multicenter cohort study. Adult patients had biopsy-proven primary IgAN diagnosed between 01/01/2015, and 06/30/2023 in China. The index date was the date of the renal biopsy. Time-to-event analysis was performed for event-free from composite renal events (occurrence of end-stage kidney disease, a 40% decline in eGFR, doubling of serum creatinine, or a mortality event). Associations between proteinuria at renal biopsy and time-averaged proteinuria (TA-P) with composite renal events were estimated using Cox regression. Healthcare visit frequency per follow-up patient-year and costs per capita were calculated.

resultsThis study included 1,674 patients (median age: 37 years) with 60.27% hypertension. At renal biopsy, the median proteinuria of 1,211 patients was 1.42 g/day and two-thirds of them exhibited proteinuria ≥ 1 g/day. During follow-up (median: two years), renin-angiotensin-aldosterone system inhibitors (69.77%) and corticosteroids (66.98%) were the most prescribed medications for IgAN; and 9.20% of patients experienced composite renal events. The probability of remaining composite renal event-free was 65.1% in the 8th year. Higher proteinuria levels were associated with an increased risk of composite renal events (hazard ratios with 95% confidence intervals: 1.18 [0.49, 2.80] for 0.5–<1 g/day, 1.77 [0.80, 3.94] for 1–<2 g/day, 2.98 [1.25, 7.07] for 2–<3 g/day and 7.73 [3.67, 16.26] for ≥ 3 g/day vs. < 0.5 g/day TA-P). On average, per follow-up year, each patient had seven outpatient nephrology visits, one hospitalization, and 14 days of hospital stay. In 2015–2023, the per capita hospital care cost was 1,847 USD; and costs increased with higher proteinuria levels or advancing chronic kidney disease stages.

conclusionsResults showed that despite of available therapies, patient outcomes remained poor, emphasizing the need for better therapeutic strategies to address the clinical and economic challenges posed by IgAN in China.

Indexed as

Cost of IllnessGlomerulonephritis, IGAAdrenal Cortex HormonesAdultBiopsyChinaFemaleHealth Care CostsHumansKidney Failure, ChronicMaleMiddle AgedProteinuriaRetrospective StudiesTreatment OutcomeAdrenal Cortex HormonesDisease progressionHealthcare costsHealthcare resource utilizationTime-averaged proteinuriaUnmet needs for IgAN treatment

Identifiers

PMID41545824
PMCPMC12892470

What Socratic holds

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LicenceCC BY-NC-ND
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.