Health informatics sits at the vibrant intersection of medicine, data science, and technology, transforming how we store, analyze, and utilize health information. This rapidly evolving field empowers clinicians and researchers to uncover patterns in patient data, improve diagnostic accuracy, and personalize treatment plans without getting lost in complex databases. By turning raw medical records into actionable insights, these innovations are reshaping the future of healthcare delivery and population health management.

At Gist.Science, we bridge the gap between cutting-edge research and public understanding by curating the latest preprints from medRxiv specifically within this domain. Our team processes every new submission in this category, providing both accessible plain-language explanations and detailed technical summaries to ensure the science is clear for everyone, from policymakers to curious readers. Below are the latest papers in health informatics, freshly distilled and ready for you to explore.

📄 health informatics

HealthFormer: Dual-level time-aware Transformers for irregular electronic health record events

The paper proposes HealthFormer, a dual-level, time-aware Transformer framework pretrained on large-scale longitudinal EHRs using multi-task self-supervision to learn hierarchical, event-centric patient representations that achieve state-of-the-art performance in incident cancer prediction through straightforward fine-tuning.

Körösi-Szabo, P., Kovacs, G., Csiszarik, A., Forrai, B., Laki, J., Szocska, M., Kovats, T.2026-03-27
📄 health informatics

Federated Learning Performance Depends on Site Variation in Global HIV Data Consortia

This study demonstrates that Federated Learning effectively enables privacy-preserving, multi-site machine learning for HIV care across diverse international cohorts, achieving performance comparable to centralized models while significantly outperforming local site-specific approaches.

Jackson, N. J., Yan, C., Caro-Vega, Y., Paredes, F., Ismerio Moreira, R., Cadet, S., Varela, D., Cesar, C., Duda, S. N. (…)2026-03-27
📄 health informatics

Development of a natural language processing application to extract and categorize mentions of violence from mental healthcare records text

This study developed and validated a multi-label BERT-based natural language processing application that successfully extracts and categorizes various forms of violence, patient roles, and contextual details from unstructured mental health records, achieving high performance on most features except temporal aspects.

Li, L., Sondh, S., Sondh, H. K., Stewart, R., Roberts, A.2026-03-26
📄 health informatics

A statistical framework for evaluating the repeatability and reproducibility of large language models

This paper presents a regulatory-informed statistical framework that quantifies the semantic and internal repeatability and reproducibility of large language models, demonstrating that these metrics vary significantly based on prompting strategies and model configurations, are often independent of diagnostic accuracy, and are essential for systematically evaluating LLM reliability in biomedical applications.

Shyr, C., Ren, B., Hsu, C.-Y., Yan, C., Tinker, R. J., Cassini, T. A., Hamid, R., Wright, A., Bastarache, L., Peterson (…)2026-03-25
📄 health informatics

Human-supervised, large language model-based clinical decision support aligned to national newborn protocols in Kenya: a pragmatic, early-stage evaluation

This study presents a pragmatic evaluation of AIFYA, a human-supervised large language model-based clinical decision support system aligned with Kenya's national newborn protocols, demonstrating successful implementation, high expert-rated accuracy, and strong user adoption in low-resource public health facilities.

Kuria, T., Kamau, G., Makokha, F., Omondi, P., Mbugua, G., David, K., Mbugua, S., Gitaka, J.2026-03-25
📄 health informatics

Medical errors in large language models revealed using 1,000 synthetic clinical transcripts

This study reveals that despite achieving high diagnostic accuracy on full histories, large language models exhibit critical safety failures—including discouraging essential investigations and inappropriately downgrading triage for life-threatening conditions, with significant gender disparities—when evaluated against 1,000 synthetic clinical transcripts that simulate real-world medical complexity.

Auger, S. D., Scott, G.2026-03-25
📄 health informatics

The Power of Open Health Data: Impact, Representation, and Knowledge Diffusion

This study evaluates four major open health data repositories using a novel two-degree citation methodology to reveal that while open data consistently generates a ~10x indirect citation amplification across vastly different funding levels, significant disparities in global representation and persistent gender gaps in senior authorship highlight that data access alone cannot address structural inequities in research leadership.

Gorijavolu, R., Armengol de la Hoz, M. A., Bielick, C., Cajas, S., Charpignon, M.-L., El Mir, A., Gichoya, J. W., Kwak (…)2026-03-24