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Delving Into PubMed Records: How AI-Influenced Vocabulary has Transformed Medical Writing since ChatGPT Cover

Delving Into PubMed Records: How AI-Influenced Vocabulary has Transformed Medical Writing since ChatGPT

By: Kentaro Matsui  
Open Access
|Dec 2025

Figures & Tables

Table 1

Words and phrases examined for usage rates.

POTENTIALLY AI-INFLUENCED TERMS
Verbs
address, align, boast, bolster, catalyze, comprehend, delve, elucidate, embark, emerge, employ, emphasize, encompass, endeavor, enhance, excel, exhibit, explore, facilitate, fortify, foster, garner, grapple, harness, highlight, illuminate, integrate, interplay, juxtapose, leverage, navigate, necessitate, offer, outperform, revolutionize, scrutinize, showcase, surpass, transform, transcend, underscore, unearth, unveil
Adjectives
actionable, commendable, complex, comprehensive, critical, crucial, deeper, essential, exceptional, exhaustive, expansive, fresh, fundamental, groundbreaking, ingenious, innovative, intricate, intriguing, invaluable, meticulous, multifaceted, noteworthy, nuanced, pivotal, potent, potential, renowned, significant, transformative, unlocking, valuable, versatile, well-rounded
Adverbs
accurately, additionally, aptly, compellingly, effectively, effortlessly, excellently, impressively, lucidly, methodically, notably, particularly, predominantly, primarily, profoundly, promptly, reportedly, scholarly, seamlessly, strategically, subsequently, thereby, thoroughly, thoughtfully, ultimately, undoubtedly
Nouns
advancement, capability, captive complexity, ecosystem, enhancement, essence, finding, foundation, insight, intricacy, journey, landscape, milestone, pipeline, prowess, realm, significance, soil, tapestry, testament, thought, understanding, utilization
Phrases
deep dive, driving force, ethical consideration, exercise caution, game changer, in addition, in summary, knowledge gap, shed light, vital role
COMMON ACADEMIC WORDS OR PHRASES IN THE MEDICAL FIELD (CONTROL)
adverse events, aim of, aimed to, all patients, analysis, associated with, association between, at least, basis of, cohort study, common grade, compared with, control group, cross-sectional, difference between, difference in, dose of, effect of, efficacy, end of, end point, evaluate, examine, further research, higher in, hypothesis, identify, included in, increased risk, independently associated, investigate, is known, less likely, logistic regression, lower in, median follow-up, models, more likely, most common, no difference, objective of, one of, our results, outcome measure, patients who, placebo group, primary endpoint, primary outcome, proportion of, purpose of, randomly, ratio, registered with, regression analysis, results suggest, retrospective, safety, secondary analysis, sought to, statistically, study period, suggest that, this study, this trial, time of, to assess, to compare, to determine, to evaluate, to examine, to identify, to investigate, to receive, treatment allocation, treatment assignment, treatment of, two groups, was found, was used, were assessed, were collected, were enrolled, were performed, were reported
pme-14-1-1929-g1.png
Figure 1

Scatter plot of word/phrase usage frequency vs. modified Z-Score in 2024. Figure 1 illustrates the relationship between the frequency of use and the modified Z-scores for words and phrases with absolute modified Z-scores exceeding 3.5 in 2024. Red circles represent potentially AI-influenced terms, while grey circles represent common academic terms in the medical field (control). The x-axis shows the number of total records using the words/phrases on a logarithmic scale, and the y-axis displays the modified Z-score for usage frequency, also on a logarithmic scale.

Shaded areas represent 95% confidence intervals.

pme-14-1-1929-g2.png
Figure 2

Mean usage (modified Z-scores) of potentially AI-influenced terms and common academic phrases from 2000 to 2024.

DOI: https://doi.org/10.5334/pme.1929 | Journal eISSN: 2212-277X
Language: English
Submitted on: Jun 3, 2025
Accepted on: Oct 17, 2025
Published on: Dec 2, 2025
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2025 Kentaro Matsui, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.