Evidence map›Paper›PMID 27542973›Full record

ArticleBMC medical informatics and decision making2016

Development and validation of method for defining conditions using Chinese electronic medical record.

Yuan Xu, Ning Li, Mingshan Lu, Robert P Myers, Elijah Dixon, Robin Walker, Libo Sun, Xiaofei Zhao, Hude Quan

Abstract readValidation Study
In one paragraph

Article in BMC medical informatics and decision making, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. 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

9 authors.

Yuan XuBeijing YouAn Hospital, Capital Medical University, 8 Xitoutiao Fengtai, Beijing, 100069, China.
Ning LiBeijing YouAn Hospital, Capital Medical University, 8 Xitoutiao Fengtai, Beijing, 100069, China. liningya@ccmu.edu.cn.
Mingshan LuDepartment of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
Robert P MyersDepartment of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
Elijah DixonDepartment of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
Robin WalkerDepartment of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
Libo SunBeijing YouAn Hospital, Capital Medical University, 8 Xitoutiao Fengtai, Beijing, 100069, China.
Xiaofei ZhaoBeijing YouAn Hospital, Capital Medical University, 8 Xitoutiao Fengtai, Beijing, 100069, China.
Hude QuanDepartment of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe adoption of the electronic medical record (EMR) is rapidly growing in China. Constantly evolving, Chinese EMRs contain vast amounts of clinical and financial data, providing tremendous potential for research and policy use; however, they are only partially standardized and contain free text or unstructured data. To utilize the information contained in Chinese EMRs, the development of data extraction methodology is urgently needed. The purpose of this study is to develop and validate methods to extract clinical information from the Chinese EMR for research use.

methodsUsing 2010 to 2014 EMR data from YouAn Hospital, a large teaching hospital affiliated with Capital Medical University in Beijing, China, we developed extraction methods including 40 EMR definitions for defining 6 liver disease, 5 disease severity conditions, and 29 comorbidities and treatments. We conducted a chart review of 450 randomly selected EMRs. Using physician chart review results as a reference, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated to validate each EMR definition.

resultsThe sensitivity of the 6 EMR definitions for liver diseases ranged from 78.9 to 100.0 %, and PPV ranged from 82.1 to 100.0 %. The sensitivity of the 5 definitions on disease severity conditions ranged from 91.0 to 100.0 %, and PPV ranged from 79.2 to 100.0 %. Among the 29 EMR definitions for comorbidities and treatments, 23 had sensitivity over 90.0 % and 25 had PPV over 80.0 %. The specificity and NPV for all 40 EMR definitions were over 90.0 %.

conclusionThe extraction method developed is a valid way of extracting information on liver diseases, comorbidities and related treatments from YouAn hospital EMRs. Our method should be modified for application to other Chinese EMR systems, following our framework for extracting conditions.

Indexed as

Electronic Health RecordsInformation Storage and RetrievalLiver DiseasesBeijingHumansReproducibility of ResultsSensitivity and SpecificityCase definitionElectronic medical recordExtraction methodLiver diseaseValidation

Identifiers

PMID27542973
PMCPMC4992264

What OpenQuestion holds

Textmetadata
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.