Evidence map›Paper›PMID 33177036›Full record

ArticleJournal of medical Internet research2020

Association Rule Mining and Prognostic Stratification of 2-Year Longevity in Octogenarians Undergoing Endovascular Therapy for Lower Extremity Arterial Disease: Observational Cohort Study.

Jing-Yi Jhang, I-Shiang Tzeng, Hsin-Hua Chou, Shih-Jung Jang, Chien-An Hsieh, Yu-Lin Ko, Hsuan-Li Huang

Open access · goldAbstract read
In one paragraph

Article in Journal of medical Internet research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Jing-Yi Jhang *Division of Cardiology, Department of Internal Medicine, Taipei Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0001-8932-6127
I-Shiang Tzeng *Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0002-9047-8141
Hsin-Hua ChouDivision of Cardiology, Department of Internal Medicine, Taipei Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0001-5871-555X
Shih-Jung JangDivision of Cardiology, Department of Internal Medicine, Taipei Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0002-3807-6743
Chien-An HsiehDivision of Cardiology, Department of Internal Medicine, Taipei Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0002-3622-0908
Yu-Lin KoDivision of Cardiology, Department of Internal Medicine, Taipei Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0002-8218-6827
Hsuan-Li HuangDivision of Cardiology, Department of Internal Medicine, Taipei Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.ORCID 0000-0001-7640-7702
Tzu Chi University · TWTaipei Tzu Chi Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTwo-year longevity is a crucial consideration in revascularization strategies for patients with symptomatic lower extremity arterial disease (LEAD). However, factors associated with 2-year longevity and risk stratification in octogenarians or nonagenarians have been underreported.

objectiveThis paper aims to investigate the associated variables and stratify the 2-year prognosis in older patients with LEAD.

methodsWe performed logistic regression and association rule mining based on the Apriori algorithm to discover independent variables and validate their associations with 2-year longevity. Malnutrition, inflammation, and stroke factors were identified. C statistics and Kaplan-Meier analysis were used to assess the impact of different numbers of malnutrition, inflammation, and stroke factors on 2-year longevity.

resultsWe recruited a total of 232 octogenarians or nonagenarians (mean age 85 years, SD 4.2 years) treated with endovascular therapy. During the study period, 81 patients died, and 27 of those (33%) died from a cardiac origin within 2 years. Association rules analysis showed the interrelationships between 2-year longevity and the neutrophil-lymphocyte ratio (NLR) and nutritional status as determined by the Controlling Nutritional Status (CONUT) score or Geriatric Nutritional Risk Index (GNRI). The cut-off values of NLR, GNRI, and CONUT were ≥3.89, ≤90.3, and >3, respectively. The C statistics for the predictive power for 2-year longevity were similar between the CONUT score and the GNRI-based models (0.773 vs 0.760; P=.57). The Kaplan-Meier analysis showed that 2-year longevity was worse as the number of malnutrition, inflammation, and stroke factors increased from 0 to 3 in both the GNRI-based model (92% vs 68% vs 46% vs 12%, respectively; P<.001) and the CONUT score model (87% vs 75% vs 49% vs 10%, respectively; P<.001). The hazard ratio between those with 3 factors and those without was 18.2 (95% CI 7.0-47.2; P<.001) in the GNRI and 13.6 (95% CI 5.9-31.5; P<.001) in the CONUT score model.

conclusionsThis study demonstrated the association and crucial role of malnutrition, inflammation, and stroke factors in assessing 2-year longevity in older patients with LEAD. Using this simple risk score might assist clinicians in selecting the appropriate treatment.

Indexed as

Aged, 80 and overCohort StudiesData MiningEndovascular ProceduresFemaleGeriatric AssessmentHumansLongevityLower ExtremityMalePeripheral Arterial DiseasePrognosisRetrospective StudiesSurvival AnalysisTime Factorsassociation rulesclinical informaticsendovascular therapylongevitylower extremity arterial diseasemedical informaticsoctogenariansolder peopleprognosisrisk

Identifiers

PMID33177036
PMCPMC7909897
OpenAlexW3104130167

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.