Trends influencing data sharing statements in high-impact dermatology journals: A systematic review

Skin diseases pose a significant global health challenge, underscoring the need for rigorous dermatology research. Data sharing statements (DSS) are critical for research transparency and collaboration, yet gaps in their implementation raise concerns about reproducibility and validity. This study systematically evaluated DSS prevalence and influencing factors in the top five dermatology journals from 2017 to 2023, and assessed practical data sharing by contacting authors who reported data availability upon request. Out of 1148 articles, 297 included DSS, with clinical trials showing the highest inclusion rate (30.71%). DSS prevalence increased from 4.35% in 2017 to 73.1% in 2023. Open access and industry-funded studies were more likely to include DSS, whereas government-funded studies were less likely. Thematic analysis revealed that conditional availability was common, but actual data accessibility was limited. Despite progress in DSS presence, significant barriers to data sharing remain, highlighting the need for standardized protocols to enhance transparency and reproducibility in dermatology research.