Evidence map›Paper›PMID 41346942›Full record

ReviewDigital health

A quarter-century of synthetic data in healthcare: Unveiling trends with structural topic modeling.

Billy Ogwel, Vincent H Mzazi, Alex O Awuor, Gabriel Otieno, Sidney Ogolla, Bryan O Nyawanda, Richard Omore

Abstract readReview
In one paragraph

Review in Digital health. 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. Review
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.

Billy OgwelCenter for Global Health Research (KEMRI-CGHR), Kenya Medical Research Institute, Kisumu, Kenya.ORCID https://orcid.org/0000-0002-9097-2713
Vincent H MzaziDepartment of Information Systems, University of South Africa, Pretoria, South Africa.
Alex O AwuorCenter for Global Health Research (KEMRI-CGHR), Kenya Medical Research Institute, Kisumu, Kenya.
Gabriel OtienoDepartment of Computing, United States International University, Nairobi, Kenya.
Sidney OgollaCenter for Global Health Research (KEMRI-CGHR), Kenya Medical Research Institute, Kisumu, Kenya.
Bryan O NyawandaCenter for Global Health Research (KEMRI-CGHR), Kenya Medical Research Institute, Kisumu, Kenya.
Richard OmoreCenter for Global Health Research (KEMRI-CGHR), Kenya Medical Research Institute, Kisumu, Kenya.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To systematically map the research landscape of synthetic data in healthcare between 2000 and 2024, revealing prevalent topics and tracking their evolution over time and across geographic locations. Methods: We applied structural topic modeling (STM) to map this landscape, identifying prevalent topics and their evolution over time and geography. PubMed articles from 2000 to 2024 with "synthetic data," "artificial data," or "simulated data" in the title/abstract were analyzed. Texts were preprocessed (lowercasing, stopword removal, stemming), and STM was run with year and continent as covariates. The optimal number of topics (K = 10) was selected based on held-out likelihood and interpretability. Topic trends and correlations were analyzed using stacked area charts and network analysis. Results: Among 7533 articles, a 20-fold growth in publications was observed. North America (48.1%) and Europe (31.8%) dominated early research, while Asia's share rose from 4.7% to 24.1%. Topics grouped into four themes: Biomedical Imaging & Signal Processing (21.1%), Synthetic Data Applications (20.7%), Computational & Statistical Methods (34.3%), and Genomics & Molecular Biology (23.9%). Initially prominent topics such as "Bayesian Modeling" (23.1%-10.8%) and "Statistical Bias & Missing Data" (21.9%-7.1%) declined, while "Synthetic Data Generation" (2.7%-23.0%), and "Disease Modeling and Public Health" (3.5%-14.3%) grew significantly. Conclusion: Synthetic data research in healthcare is expanding, with shifting regional contributions and evolving topic focus. Realizing its potential requires cross-disciplinary collaboration, bias mitigation, and equitable partnerships.

Indexed as

Healthcaremachine learningnetwork visualizationstructural topic modelingsynthetic data

Identifiers

PMID41346942
PMCPMC12673032

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.