Objective:

To analyze publication trends in the Journal of Neuro-Oncology (JNO) with a focus on changes in countries of publication and gender of authorship.

Key Findings:

• Neuro-oncology publications have significantly increased over the past three decades.
• Disparities in publication trends based on gender and country of origin were observed.
• The U.S. leads in neurosurgery publications, with high-income countries showing higher publication rates.
• Gender diversity in authorship has improved, with female authorship rising from 25.5% in 2002 to 31.7% in 2018.
• A novel Country-Based Representativeness Index was introduced to assess diversity in publications.

Interpretation:

The findings highlight the evolving landscape of neuro-oncology research, emphasizing the need for increased diversity in authorship and representation across countries, which is crucial for future research directions.

Limitations:

• Potential biases in publication trends based on geographic and gender disparities.
• Exclusion of ambiguous gender classifications may affect gender analysis accuracy, potentially skewing results.

Conclusion:

The study underscores the importance of monitoring publication trends in neuro-oncology to ensure diversity and representativeness in research outputs, addressing ongoing disparities.