Evidence map›Paper›PMID 29794815›Full record

ArticleJournal of hypertension2018

Increasing SBP variability is associated with an increased risk of developing incident diabetic foot ulcers.

Meghan B Brennan, Marylou Guihan, Elly Budiman-Mak, Hyojung Kang, Jennifer M Lobo, Bryn L Sutherland, Nicholas Emanuele, Elbert S Huang, Min-Woong Sohn

Open access · greenAbstract read
In one paragraph

Article in Journal of hypertension, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% 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

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

  1. Pooled it
  2. Article
  3. Impact of in-hospital blood pressure variability on clinical outcomes in patients with symptomatic peripheral arterial disease.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Article
  4. Article
  5. Article
  6. Article
  7. Reply.Journal of hypertension · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 2 countries.

Meghan B BrennanHealth Innovation Program, University of Wisconsin, Madison, Wisconsin.
Marylou GuihanCenter of Innovation for Complex Chronic Healthcare, Hines VA Hospital, Hines.
Elly Budiman-MakCenter of Innovation for Complex Chronic Healthcare, Hines VA Hospital, Hines.
Hyojung KangDepartment of Systems and Information Engineering, School of Engineering.
Jennifer M LoboDepartment of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, Virginia.
Bryn L SutherlandHealth Innovation Program, University of Wisconsin, Madison, Wisconsin.
Nicholas EmanueleCenter of Innovation for Complex Chronic Healthcare, Hines VA Hospital, Hines.
Elbert S HuangDepartment of Medicine, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA.
Min-Woong SohnDepartment of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, Virginia.
Apple (Israel) · IL

Funding

University of Wisconsin Institute for Clinical and Translational ResearchUL1TR002373 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI ELIZABETH S BURNSIDE, Allan R. Brasier · 2017 to 2026
$75.9M
Institutional Clinical and Translational Science AwardUL1TR000427 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2012 to 2016
$32.2M
Research Design, Data, and Analytics CoreP30DK092949 · NIDDK · UNIVERSITY OF CHICAGO · PI ELBERT S. HUANG · 2011 to 2026
$10.0M
Institutional Career Development CoreKL2TR002374 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI Bo Liu, Marin Leigh Schweizer · 2017 to 2026
$9.7M
Institutional Clinical and Translational Science AwardKL2TR000428 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2012 to 2016
$6.2M
Comparative Effectiveness of Dynamic Patterns of Glucose Lowering TherapiesR01HS018542 · AHRQ · UNIVERSITY OF CHICAGO · PI HUANG, ELBERT S. · 2012 to 2015
$1.3M
Research and Mentorship in Medical Decision Making in DiabetesK24DK105340 · NIDDK · UNIVERSITY OF CHICAGO · PI HUANG, ELBERT S. · 2015 to 2019
$884k
AHRQ HHS R01 HS018542NCATS NIH HHS KL2 TR000428NCATS NIH HHS KL2 TR002374NCATS NIH HHS UL1 TR000427NCATS NIH HHS UL1 TR002373NIDDK NIH HHS K24 DK105340NIDDK NIH HHS P30 DK092949
6 · The paper itself

Abstract

objectiveSBP variability may be a target for mitigating end-organ damage associated with vascular disease. We evaluated the relationship between increased SBP variability and risk of incident diabetic foot ulceration.

methodsUsing a nested case-control design, we followed patients diagnosed with diabetes and treated within the US Department of Veterans Affairs Healthcare system for development of a diabetic foot ulcer (event) between 2006 and 2010. Each case was randomly matched to up to five controls based on age, sex, race/ethnicity, and calendar time. SBP variability was computed using at least three blood pressure measurements from the year preceding the event. The association between SBP variability and foot ulceration was examined using conditional logistic regression. Potential protective effects of calcium channel blockers, which blunt SBP variability, were also explored.

resultsThe study sample included 51 111 cases and 129 247 controls. Compared with those in quartile 1 (lowest variability), patients in quartiles 2-4 had higher adjusted odds ratios for diabetic foot ulcer development: 1.11 (95% CI 1.07-1.16), 1.20 (95% CI 1.15-1.25), 1.29 (95% CI 1.24-1.34) (P for trend <0.001). Calcium channel blockers were associated with reduced risks of ulceration for those without peripheral vascular disease (OR = 0.87, 95% CI 0.84-0.90, P < 0.001) or neuropathy (OR = 0.85, 95% CI 0.82-0.89, P < 0.001) in adjusted subgroup analyses.

conclusionThis study describes a graded relationship between SBP variability and risk of diabetic foot ulceration, providing a potential new and modifiable target to reduce this common complication.

Indexed as

Blood PressureCalcium Channel BlockersCase-Control StudiesDiabetes Mellitus, Type 2Diabetic FootFemaleHumansMaleMiddle AgedProtective FactorsRetrospective StudiesRisk FactorsSystoleUnited StatesCalcium Channel Blockers

Identifiers

PMID29794815
PMCPMC6158046
OpenAlexW2803213880

What OpenQuestion holds

Textmetadata
LicenceTDM
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.