Evidence map›Paper›PMID 29132636›Full record

ArticleInternational journal of medical informatics2017

Systematic data ingratiation of clinical trial recruitment locations for geographic-based query and visualization.

Jake Luo, Weiheng Chen, Min Wu, Chunhua Weng

Abstract read
In one paragraph

Article in International journal of medical informatics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

4 authors.

Jake LuoDepartment of Health Informatics and Administration, University of Wisconsin Milwaukee, Milwaukee, WI,United States; Biomedical Data and Language Processing Center, University of Wisconsin Milwaukee, Milwaukee, WI, United States.
Weiheng ChenDepartment of Health Informatics and Administration, University of Wisconsin Milwaukee, Milwaukee, WI,United States; Biomedical Data and Language Processing Center, University of Wisconsin Milwaukee, Milwaukee, WI, United States.
Min WuDepartment of Health Informatics and Administration, University of Wisconsin Milwaukee, Milwaukee, WI,United States; Biomedical Data and Language Processing Center, University of Wisconsin Milwaukee, Milwaukee, WI, United States.
Chunhua WengDepartment of Biomedical Informatics, Columbia University, New York City, NY, United States.

Funding

Bridging the Semantic Gap Between Research Eligibility Criteria and Clinical DataR01LM009886 · NLM · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WENG, CHUNHUA · 2009 to 2020
$5.3M
NLM NIH HHS R01 LM009886
6 · The paper itself

Abstract

backgroundPrior studies of clinical trial planning indicate that it is crucial to search and screen recruitment sites before starting to enroll participants. However, currently there is no systematic method developed to support clinical investigators to search candidate recruitment sites according to their interested clinical trial factors.

objectiveIn this study, we aim at developing a new approach to integrating the location data of over one million heterogeneous recruitment sites that are stored in clinical trial documents. The integrated recruitment location data can be searched and visualized using a map-based information retrieval method. The method enables systematic search and analysis of recruitment sites across a large amount of clinical trials.

methodsThe location data of more than 1.4 million recruitment sites of over 183,000 clinical trials was normalized and integrated using a geocoding method. The integrated data can be used to support geographic information retrieval of recruitment sites. Additionally, the information of over 6000 clinical trial target disease conditions and close to 4000 interventions was also integrated into the system and linked to the recruitment locations. Such data integration enabled the construction of a novel map-based query system. The system will allow clinical investigators to search and visualize candidate recruitment sites for clinical trials based on target conditions and interventions.

resultsThe evaluation results showed that the coverage of the geographic location mapping for the 1.4 million recruitment sites was 99.8%. The evaluation of 200 randomly retrieved recruitment sites showed that the correctness of geographic information mapping was 96.5%. The recruitment intensities of the top 30 countries were also retrieved and analyzed. The data analysis results indicated that the recruitment intensity varied significantly across different countries and geographic areas.

conclusionThis study contributed a new data processing framework to extract and integrate the location data of heterogeneous recruitment sites from clinical trial documents. The developed system can support effective retrieval and analysis of potential recruitment sites using target clinical trial factors.

Indexed as

Computer GraphicsGeographic MappingPatient SelectionClinical Trials as TopicGeographic Information SystemsHumansInformation Storage and RetrievalInformation SystemsClinical research informaticsClinical trialData integrationGeocodingGeographic data extractionGeographic visualizationInteractive map

Identifiers

PMID29132636
PMCPMC5866921

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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.