Evidence map›Paper›PMID 29738540›Full record

ArticlePloS one2018

Risk of lactic acidosis in type 2 diabetes patients using metformin: A case control study.

Abdellatif Aharaz, Anton Pottegård, Daniel Pilsgaard Henriksen, Jesper Hallas, Henning Beck-Nielsen, Annmarie Touborg Lassen

Open access · goldFull text read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Observational
  15. Article
  16. Article
  17. 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

6 authors at 2 institutions in 1 country.

Abdellatif AharazDepartment of Endocrinology, Odense University Hospital, Odense, Denmark.ORCID 0000-0003-4246-229X
Anton PottegårdClinical Pharmacology and Pharmacy, University of Southern Denmark, Odense, Denmark.
Daniel Pilsgaard HenriksenDepartment of Respiratory Medicine, Odense University Hospital, Odense, Denmark.
Jesper HallasClinical Pharmacology and Pharmacy, University of Southern Denmark, Odense, Denmark.
Henning Beck-NielsenDepartment of Endocrinology, Odense University Hospital, Odense, Denmark.
Annmarie Touborg LassenDepartment of Emergency Medicine, Odense University Hospital, Odense, Denmark.
Odense University Hospital · DKUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMetformin constitutes first-line treatment of type 2 diabetes mellitus. It is presumed to have lactic acidosis as a dangerous, but rare, side effect.

objectivesTo estimate the incidence rate of lactic acidosis in patients with type 2 diabetes mellitus as well as to estimate the relative risk of lactic acidosis associated with metformin treatment.

methodsThis is a population-based combined cohort and case-control study among patients with type 2 diabetes mellitus who were acutely admitted with lactic acidosis at Odense University Hospital, Denmark; in the period from 1st June 2009 to 1st October 2013. The patients included as cases were all acutely hospitalized with lactic acidosis (pH <7.35 and lactate ≥2.0 mmol/l). For each case, we identified 24 age- and sex-matched controls sampled from the same cohort with type 2 diabetes mellitus. The use of metformin identified by using a prescription database. Analyses included multivariable logistic regression and adjusting for predefined confounding: renal function, HbA1c, comorbidity and diabetes duration.

resultsOur cohort included 10,652 patients with type 2 diabetes mellitus with a median age of 74 years, and 51.5% were male. During follow-up, 163 individuals were hospitalized with lactic acidosis, corresponding to an incidence rate of 391/100,000 person years. Use of metformin was not associated with lactic acidosis: adjusted odds ratio was 0.79 (95%CI 0.54-1.17).

conclusionAmong patients with type 2 diabetes mellitus, the incidence rate of acute hospitalization with lactic acidosis was 391/100,000 person years. Use of metformin did not increase the risk of lactic acidosis. However, comorbidity seems to be an important risk factor.

Indexed as

Acidosis, LacticAgedAged, 80 and overCase-Control StudiesComorbidityDenmarkDiabetes Mellitus, Type 2Drug-Related Side Effects and Adverse ReactionsFemaleHumansHypoglycemic AgentsIncidenceMaleMetforminRisk FactorsHypoglycemic AgentsMetformin

Identifiers

PMID29738540
PMCPMC5940216
OpenAlexW2801542522

What OpenQuestion holds

Textfull text, public
LicenceCC BY
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.