Evidence map›Paper›PMID 37398692›Full record

ArticleClinical kidney journal2023

Association of serum bicarbonate with the development of kidney stones in patients with chronic kidney disease: a retrospective cohort study.

Navdeep Tangri, Vandana Mathur, Nancy L Reaven, Susan E Funk, Reid H Whitlock, Donald E Wesson, David A Bushinsky

Abstract read
In one paragraph

Article in Clinical kidney journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Dietary acid load in health and disease.Pflugers Archiv : European journal of physiology · 2024
    Review
  8. Review
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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

7 authors.

Navdeep TangriDepartment of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; Winnipeg, Manitoba, Canada.
Vandana MathurMathurConsulting LLC, Woodside, CA, USA.ORCID https://orcid.org/0000-0003-3089-8205
Nancy L ReavenStrategic Health Resources, La Canada, CA, USA.
Susan E FunkStrategic Health Resources, La Canada, CA, USA.
Reid H WhitlockSeven Oaks Hospital Chronic Disease Innovation Centre; Winnipeg, Manitoba, Canada.ORCID https://orcid.org/0000-0002-7046-0358
Donald E WessonDell Medical School, The University of Texas at Austin, Austin, TX, USA; Donald E Wesson Consulting, LLC, TX, USA.
David A BushinskyUniversity of Rochester School of Medicine, Rochester, NY, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Epidemiological studies demonstrate an association between kidney stones and risk of chronic kidney disease (CKD) and CKD progression. Metabolic acidosis, as a consequence of CKD, results in a reduced urine pH which promotes the formation of some types of kidney stones and inhibits the formation of others. While metabolic acidosis is a risk factor for CKD progression, the association of serum bicarbonate with risk of incident kidney stones is not well understood. Methods: We used an Integrated Claims-Clinical dataset of US patients to generate a cohort of patients with non-dialysis-dependent CKD with two serum bicarbonate values of 12 to <22 mmol/L (metabolic acidosis) or 22 to <30 mmol/L (normal serum bicarbonate). Primary exposure variables were baseline serum bicarbonate and change in serum bicarbonate over time. Cox proportional hazards models evaluated time to first occurrence of kidney stones during a median 3.2-year follow-up. Results: A total of 142 884 patients qualified for the study cohort. Patients with metabolic acidosis experienced post-index date kidney stones at greater frequency than patients with normal serum bicarbonate at the index date (12.0% vs 9.5%, Conclusions: Metabolic acidosis was associated with a higher incidence of kidney stones and shorter time to incident stone formation in patients with CKD. Future studies may investigate the role of correcting metabolic acidosis to prevent stone formation.

Indexed as

chronic kidney diseasekidney stonemetabolic acidosisnephrolithiasisserum bicarbonate

Identifiers

PMID37398692
PMCPMC10310507

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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 OpenQuestion graph.