Evidence map›Paper›PMID 34401717›Full record

ArticleKidney medicine

Obesity and the Risk of Low Bicarbonate: A Cohort Study.

Douglas C Lambert, Matthew K Abramowitz

Open access · goldAbstract read
In one paragraph

Article in Kidney medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Acid accumulation in bipolar disorder.Journal of affective disorders · 2026
    Article
  2. Article
  3. Dietary acid load in health and disease.Pflugers Archiv : European journal of physiology · 2024
    Review
  4. Article
  5. Article
  6. Article
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

2 authors at 2 institutions in 1 country.

Douglas C LambertDepartment of General Internal Medicine, Northwell Health, Great Neck.
Matthew K AbramowitzDepartment of Medicine, Albert Einstein College of Medicine, Bronx, NY.
Albert Einstein College of Medicine · USNorthwell Health · US

Funding

Stable Isotope and Metabolomics CoreP60DK020541 · NIDDK · YESHIVA UNIVERSITY · PI FLEISCHER, NORMAN S. · 1986 to 2014
$29.8M
Translational Research CoreP30DK020541 · NIDDK · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI JEFFREY E. PESSIN · 2015 to 2026
$27.7M
Inflammation, muscle wasting, and physical function in chronic kidney diseaseK23DK099438 · NIDDK · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI ABRAMOWITZ, MATTHEW K · 2014 to 2018
$946k
NIDDK NIH HHS K23 DK099438NIDDK NIH HHS P30 DK020541NIDDK NIH HHS P60 DK020541
6 · The paper itself

Abstract

RATIONALE &

objectiveAcid retention may occur in the absence of overt metabolic acidosis; thus it is important to identify populations at risk. Because obesity may alter renal acid-base handling, we sought to determine whether overweight and obesity are associated with increased risk for low serum bicarbonate levels, suggesting metabolic acidosis. STUDY

designRetrospective cohort study. SETTING &

participantsAdult patients (n = 96,147) visiting outpatient clinics in the Bronx, NY, between January 1, 2010, and December 31, 2015. PREDICTOR: Body mass index (BMI). OUTCOME: Low serum bicarbonate level (≤23 mEq/L). ANALYTICAL APPROACH: Longitudinal analyses were conducted using mixed-effects models to examine associations of BMI with serum bicarbonate levels over time and Cox proportional hazards models to examine associations of BMI with incident low bicarbonate levels.

resultsDuring a median follow-up of 4.4 (interquartile range, 2.3-6.3) years, patients had a median of 8 serum bicarbonate measurements and 34,539 patients developed low bicarbonate levels. Higher BMI was associated with progressively lower serum bicarbonate levels, with attenuation of the association in the highest BMI groups, suggesting a J-shaped relationship. Compared with the reference group (BMI, 18.5 to <25 kg.m LIMITATIONS: Arterial pH measurements were unavailable.

conclusionsHigher BMI is independently associated with progressively greater risk for developing low serum bicarbonate levels, indicating likely metabolic acidosis. Further research should explore the causes of low bicarbonate levels in patients with overweight and obesity.

Indexed as

acid-basebicarbonatebody mass indexinsulin resistancemetabolic acidosisObesityoverweight

Identifiers

PMID34401717
PMCPMC8350812
OpenAlexW3155439250

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.