Observational studyDiabetes, obesity & metabolism2018

Risk of lower extremity amputations in people with type 2 diabetes mellitus treated with sodium-glucose co-transporter-2 inhibitors in the USA: A retrospective cohort study.

Zhong Yuan, Frank J DeFalco, Patrick B Ryan, Martijn J Schuemie, Paul E Stang, Jesse A Berlin, Mehul Desai, Norm Rosenthal

Open access · hybridAbstract readComparative StudyMulticenter StudyObservational Study
In one paragraph

Observational study in Diabetes, obesity & metabolism, 2018. The graph read 1 number from its abstract, feeding 1 cell of the map, but none could be read as for or against, so it casts no vote. Cited by 53 papers, 6 of them syntheses that pooled it.

1number the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 6 pooled it
15.1field-weighted citation impact, top 1% 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.

Read, but not usablea number the graph found but could not read as for or against

Cardiovascular eventsan association or prognostic statement, not a treatment comparison · t2dfeeds one cell of the map
HR 0.980.68 to 1.41P = .92
The incidence rates of BKLE amputation were 1.18 and 1.12 events per 1000 person-years with canagliflozin and non-SGLT2 inhibitor AHAs, respectively; the hazard ratio was 0.98 (95% confidence interval 0.68-1.41; P = .92, calibrated P = .95).

clause the extractor read what became the number

2 · Its place on the map

Where it lands on the map

Rows are treatments, columns are outcomes. The coloured squares are the cells this paper feeds, coloured by the vote it casts there. Click one to jump to what this paper adds to it.

supports the treatmentfavours the comparatorno clear differenceread, but no usable result
3 · What it changes

What it adds to each cell

For every cell the paper feeds: the belief in the claim with and without this paper, and this paper's estimate drawn against every other readable study in the cell. The ringed dot is this paper.

SGLT2 inhibitors×cardiovascular events

No readable resultOpen on the map →What to test next →

22 readable studies in this cell: 9 favour the treatment, 11 find no difference, 2 favour the comparator.

Belief with this paper
0.50contested · 9 families support, 6 contradict · against placebo
Without itNot a counted family in this claim, so removing it changes nothing.
← favours the comparatorfavours the treatment →
1 · no effect
NCT0546531762,197 enrolled · 2022
HR 0.750.65 to 0.86
NCT0399313226,774 enrolled · 2018
HR 1.010.91 to 1.11
NCT0173053417,190 enrolled · 2013
HR 0.930.84 to 1.03
NCT0493781616,746 enrolled · 2021
HR 1.000.83 to 1.20
NCT045096746,522 enrolled · 2020
HR 0.900.76 to 1.06
NCT036192136,263 enrolled · 2018
HR 0.820.73 to 0.92
NCT030579515,988 enrolled · 2017
HR 0.790.69 to 0.90
NCT019897545,813 enrolled · 2014
HR 0.720.55 to 0.94
NCT020657914,401 enrolled · 2014
HR 0.700.59 to 0.82
NCT010326294,330 enrolled · 2009
HR 0.930.78 to 1.12
NCT045647424,017 enrolled · 2020
Win Ratio (WR) 1.341.20 to 1.50
NCT030579773,730 enrolled · 2017
HR 0.750.65 to 0.86

This paper's own estimate is on a different scale from the rest of the cell, so it is not drawn here.

4 · 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.

5 · Its place in the literature

Who cites it

53 citing papers in PubMed, 6 syntheses or guidelines pooled it, 119 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Trial
  8. Observational
  9. Review
  10. Liraglutide Promotes Diabetic Wound Healing via Myo1c/Dock5.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
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  12. Review
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  18. Article
  19. Review
  20. Observational
6 · The record

Corrections and comments

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

7 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Zhong YuanJanssen Research & Development, LLC, Titusville, New Jersey.ORCID 0000-0002-5824-2040
Frank J DeFalcoJanssen Research & Development, LLC, Raritan, New Jersey.
Patrick B RyanJanssen Research & Development, LLC, Titusville, New Jersey.
Martijn J SchuemieJanssen Research & Development, LLC, Titusville, New Jersey.
Paul E StangJanssen Research & Development, LLC, Titusville, New Jersey.
Jesse A BerlinJohnson & Johnson, Titusville, New Jersey.
Mehul DesaiJanssen Research & Development, LLC, Raritan, New Jersey.ORCID 0000-0003-3489-1967
Norm RosenthalJanssen Research & Development, LLC, Raritan, New Jersey.
Janssen (United States) · USJohnson & Johnson (United States) · US

Funding

No grant is acknowledged in the PubMed record.

8 · The paper itself

Abstract

The marked sentences are the ones the graph read a number from.

aimsTo examine the incidence of amputation in patients with type 2 diabetes mellitus (T2DM) treated with sodium glucose co-transporter 2 (SGLT2) inhibitors overall, and canagliflozin specifically, compared with non-SGLT2 inhibitor antihyperglycaemic agents (AHAs). MATERIALS AND

methodsPatients with T2DM newly exposed to SGLT2 inhibitors or non-SGLT2 inhibitor AHAs were identified using the Truven MarketScan database. The incidence of below-knee lower extremity (BKLE) amputation was calculated for patients treated with SGLT2 inhibitors, canagliflozin, or non-SGLT2 inhibitor AHAs. Patients newly exposed to canagliflozin and non-SGLT2 inhibitor AHAs were matched 1:1 on propensity scores, and a Cox proportional hazards model was used for comparative analysis. Negative controls (outcomes not believed to be associated with any AHA) were used to calibrate P values.

resultsBetween April 1, 2013 and October 31, 2016, 118 018 new users of SGLT2 inhibitors, including 73 024 of canagliflozin, and 226 623 new users of non-SGLT2 inhibitor AHAs were identified. The crude incidence rates of BKLE amputation were 1.22, 1.26 and 1.87 events per 1000 person-years with SGLT2 inhibitors, canagliflozin and non-SGLT2 inhibitor AHAs, respectively. For the comparative analysis, 63 845 new users of canagliflozin were matched with 63 845 new users of non-SGLT2 inhibitor AHAs, resulting in well-balanced baseline covariates. The incidence rates of BKLE amputation were 1.18 and 1.12 events per 1000 person-years with canagliflozin and non-SGLT2 inhibitor AHAs, respectively; the hazard ratio was 0.98 (95% confidence interval 0.68-1.41; P = .92, calibrated P = .95).

conclusionsThis real-world study observed no evidence of increased risk of BKLE amputation for new users of canagliflozin compared with non-SGLT2 inhibitor AHAs in a broad population of patients with T2DM.

Indexed as

Amputation, SurgicalCanagliflozinDiabetes Mellitus, Type 2Diabetic AngiopathiesFemaleHumansHypoglycemic AgentsLegMaleMiddle AgedRetrospective StudiesRisk FactorsSodium-Glucose Transporter 2 InhibitorsUnited StatesCanagliflozinHypoglycemic AgentsSodium-Glucose Transporter 2 InhibitorsSGLT2 inhibitortype 2 diabetes

Identifiers

PMID28898514
PMCPMC5836890
OpenAlexW2756318809

What OpenQuestion holds

Texttitle and abstract
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.