Evidence map›Paper›PMID 36715437›Full record

SynthesisRenal failure2023

Is serum hemoglobin level an independent prognostic factor for IgA nephropathy?: a systematic review and meta-analysis of observational cohort studies.

Kang Zhang, Meng-di Wang, Shang-Shang Jiang, Long Tang, Yue-Fen Wang, Yuan Meng, Zhen Cai, Xue-Yan Sun, Fang-Qiang Cui, Wen-Jing Zhao

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Renal failure, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.8field-weighted citation impact, top 30% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Kang ZhangDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Meng-di WangDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Shang-Shang JiangDongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China.
Long TangDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Yue-Fen WangDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Yuan MengDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Zhen CaiDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Xue-Yan SunDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Fang-Qiang CuiDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Wen-Jing ZhaoDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Beijing Hospital of Traditional Chinese Medicine · CNCapital Medical University · CNDongzhimen Hospital Affiliated to Beijing University of Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDecreased serum hemoglobin (Hb) level is associated with Immunoglobulin A nephropathy (IgAN) progression. However, whether serum Hb level is an independent prognostic factor of IgAN remains controversial. Herein, we aimed to investigate the prognostic value of serum Hb level in IgAN.

methodsThe Cochrane Library, Embase, PubMed and Open Grey databases were systematically searched and reviewed. Kidney disease progression of IgAN was defined as a doubling of serum creatinine (SCr), a 30% reduction in estimated glomerular filtration rate (eGFR), end-stage renal disease (ESRD), or death. We evaluated the hazard ratio (HR) between serum Hb level and the incidence of kidney disease progression in IgAN before and after adjusting for relevant covariates.

resultsWe included nine studies with 10006 patients in the meta-analysis. As a continuous variable, we found that serum Hb was an independent prognostic factor of IgAN [unadjusted HR = 0.89, 95% confidence interval (CI) = 0.84-0.95,

conclusionSerum Hb level was independently correlated with the incidence of kidney disease progression in IgAN.

Indexed as

Glomerulonephritis, IGAKidney Failure, ChronicDisease ProgressionGlomerular Filtration RateHemoglobinsHumansObservational Studies as TopicPrognosisHemoglobinsImmunoglobulin A nephropathyprognosisserum hemoglobin level

Identifiers

PMID36715437
PMCPMC9888460
OpenAlexW4318480530

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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 OpenQuestion graph.