Cited by 133Statistical Methods and Bayesian InferenceMachine Learning in HealthcareArtificial Intelligence in Healthcare

Imputation of missing values for electronic health record laboratory data

Open access
Li, Jiang, Yan, Xiaowei S., Chaudhary, Durgesh, Avula, Venkatesh, Mudiganti, Satish, Husby, Hannah, Shahjouei, Shima, Afshar, Ardavan +4 more·2021·npj Digital Medicine

Abstract

Laboratory data from Electronic Health Records (EHR) are often used in prediction models where estimation bias and model performance from missingness can be mitigated using imputation methods. We demonstrate the utility of imputation in two real-world EHR-derived cohorts of ischemic stroke from Geisinger and of heart failure from Sutter Health to: (1) characterize the patterns of missingness in laboratory variables; (2) simulate two missing mechanisms, arbitrary and monotone; (3) compare cross-sectional and multi-level multivariate missing imputation algorithms applied to laboratory data; (4) assess whether incorporation of latent information, derived from comorbidity data, can improve the performance of the algorithms. The latter was based on a case study of hemoglobin A1c under a univariate missing imputation framework. Overall, the pattern of missingness in EHR laboratory variables was not at random and was highly associated with patients’ comorbidity data; and the multi-level imputation algorithm showed smaller imputation error than the cross-sectional method.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41746-021-00518-0

Cites

47 of 47 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [11]Ford, B. in Incomplete Data in Sample Surveys, Theory and Bibliographies Vol. 2 (Part IV) (eds. W. Madow, H. Nisselson, & I. Olkin) 185–207 (Academic Press, 1983).
  2. [41]Van Buuren S Groothuis-Oudshoorn K mice: multivariate imputation by chained equations in R J. Stat. Softw. 2011 45 67 10.18637/jss.v045.i03 · DOI · Paper page

Cited by

Sorted by citations

Authors
Li, J., Yan, X. S., Chaudhary, D., Avula, V., Mudiganti, S., Husby, H., Shahjouei, S., Afshar, A., Stewart, W. F., Yeasin, M., Zand, R., & Abedi, V.
Affiliations
  • Geisinger Health System (US)
  • Sutter Health (US)
  • Georgia Institute of Technology (US)
  • University of Memphis (US)
  • Pennsylvania State University (US)
Corresponding author
Abedi, Vida
Venue
npj Digital Medicine
Published
2021-10-11
Volume
4
Issue
1
Pages
147-147
ISSN
2398-6352 (ISSN-L)
OpenAlex
W3205484571
Cited by
133
References
47
Citations by year
2026: 30 · 2025: 35 · 2024: 33 · 2023: 23 · 2022: 11 · 2021: 1
FWCI
12.68
Type
journal article
Language
en
Open access
Locations
  • npj Digital Medicine (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
U.S. Department of Health & Human Services | NIH | Center for Information Technology (R56HL116832)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Bayesian Inference
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning in Healthcare
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
Keywords
missing data imputation, electronic health records, laboratory findings, ischemic stroke, heart failure, missingness patterns, comorbidities, HbA1c, imputation error

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review