Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025

Fatma Zehra Ağan; Ahmet Uyanıkoğlu

Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025

Abstract

Liver cirrhosis is a chronic progressive liver disease and a major cause of morbidity and mortality worldwide. This study aimed to evaluate the bibliometric characteristics and publication conversion performance of medical specialty theses on cirrhosis in Türkiye. In this descriptive and retrospective study, medical specialty theses on cirrhosis completed between 2011 and 2025 and available through the National Thesis Center database of the Council of Higher Education (YÖK) were reviewed. The theses were evaluated according to year of completion, language, institution, department, academic title of the thesis supervisor, publication conversion status, time to publication, indexing status of the publishing journal, and citation count. A total of 98 theses were included in the study. Of these, 98.97% were written in Turkish. The highest number of theses was completed in 2022 (n=14; 14.28%). The institution with the highest number of theses was the University of Health Sciences (n=16; 16.32%). Most theses were conducted in Gastroenterology (57.14%) and Internal Medicine (19.38%). Overall, 23.46% of the theses were converted into scientific publications. The median time to publication was 2 years (minimum, 1; maximum, 12 years). Of the published articles, 34.78% were published in journals indexed in SCI/SCI-E. The median citation count was 2 (minimum, 0; maximum, 78). A significant association was found between thesis type and publication conversion (p=0.008), whereas no significant association was observed between publication status and the other variables. The annual distribution of medical specialty theses on cirrhosis in Türkiye showed temporal fluctuations, with the highest number of theses completed in 2022. However, only approximately one-quarter of the theses were converted into scientific publications. Strengthening support mechanisms for the publication of thesis-derived research may help improve academic productivity and international visibility in the field of cirrhosis.

Keywords

References

Bahadır, H., & Lüleci, D. (2025). Bibliometric analysis and publication status of public health specialization theses in Turkey. Balıkesir Sağlık Bilimleri Dergisi, 14 (1), 40–47. https://doi.org/10.53424/balikesirsbd.1555989
Bahadır, S., & Başar, İ. (2023). Nöroşirürji uzmanlık tezleri ve uluslararası dergilerde yayınlanma durumları hakkında bir çalışma. Medical Journal of Bakirkoy, 19 (1), 97-103.
Bayramlar, H., Karadağ, R., Kanra Gürtürk, A. Y., Öcal, A., Dağ, Y., & Sarı, U. (2015). Publication patterns of ophthalmology residency dissertations in Turkey. European Journal of General Medicine, 12 (3), 213–216.
Ethemoğlu, G. (2025). Türkiye’de tüberküloz alanında yapılmış tezlerin bibliyometrik analizi. Harran Üniversitesi Tıp Fakültesi Dergisi, 22 (4), 657–666. https://doi.org/10.35440/hutfd.1723530
Garcia-Tsao, G., Abraldes, J. G., Berzigotti, A., & Bosch, J. (2017). Portal hypertensive bleeding in cirrhosis: Risk stratification, diagnosis, and management: 2016 practice guidance by the American Association for the Study of Liver Diseases. Hepatology, 65 (1), 310–335. https://doi.org/10.1002/hep.28906
Ginès, P., Krag, A., Abraldes, J. G., Solà, E., Fabrellas, N., & Kamath, P. S. (2021). Liver cirrhosis. The Lancet, 398 (10308), 1359–1376. https://doi.org/10.1016/S0140-6736(21)01374-X
Huang, D. Q., Terrault, N. A., Tacke, F., Gluud, L. L., Arrese, M., Bugianesi, E., & Loomba, R. (2023). Global epidemiology of cirrhosis-Aetiology, trends and predictions. Nature Reviews Gastroenterology & Hepatology, 20 (6), 388–398. https://doi.org/10.1038/s41575-023-00759-2
Karakullukçu, A., & Ardıç, C. (2023). Bibliometric analysis of medical speciality dissertation studies in family medicine departments and clinics between 2000–2020. Ankara Medical Journal, 23 (3), 295–311. https://doi.org/10.5505/amj.2023.90836

Kardeş, S. (2019). Publication rate of specialization in medicine theses in medical ecology and hydroclimatology in Turkey: A cross-sectional study. Journal of Istanbul Faculty of Medicine, 82 (1), 62–68. https://izlik.org/JA39NR99XW
Kaya, E., Üçer, H., & Ekinci Erdoğan, Ö. (2020). Türkiye’de halk sağlığı alanındaki uzmanlık tezlerinin bilimsel yayına dönüştürülme oranlarının değerlendirilmesi. Eskişehir Türk Dünyası Uygulama ve Araştırma Merkezi Halk Sağlığı Dergisi, 5 (3), 410–417. https://doi.org/10.35232/estudamhsd.743925.
Küçükyangöz, B. (2026). Publication outcomes of dermatology residency theses in Türkiye and their determinants. Abant Medical Journal, 15 (1), 56–66. https://doi.org/10.47493/abantmedj.1793122
Özgen, Ü. (2011). Publication pattern of Turkish medical theses: Analysis of 22,625 medical theses completed in years 1980–2005. Turkiye Klinikleri Journal of Medical Sciences, 31 (5), 1122-1131.
Özturan, İ. U., & Sarbay, İ. (2023). Scholarly impact of the dissertation requirement for postgraduate medical education and factors affecting transformation into publication: A bibliometric analysis of 2434 dissertations in the field of emergency medicine. Turkish Journal of Emergency Medicine, 23 (4), 219–224. https://doi.org/10.4103/tjem.tjem_45_23
Salbaş, A., & Koç, A. M. (2026). Bibliometric analysis of radiology residency theses in Türkiye: Publication metrics and trends. Diagnostic and Interventional Radiology, 32 (1), 71.
Sipahi, O. R., Çağlayan Serin, D., Pullukçu, H., Taşbakan, M., Köseli Ulu, D., Yamazhan, T., Arda, B., Sipahi, H., & Ulusoy, S. (2014). Ülkemizde tıbbi mikrobiyoloji, klinik mikrobiyoloji ve enfeksiyon hastalıkları dallarında yapılan tıpta uzmanlık ve doktora tezlerinin uluslararası dergilerde yayına dönüşüm oranları. Mikrobiyoloji Bülteni, 48 (2), 341–345. https://doi.org/10.5578/mb.7003
Tham, E. K. J., Tan, D. J. H., Danpanichkul, P., Ng, C. H., Syn, N., Koh, B., Lim, R. Y. Z., Wijarnpreecha, K., Teng, M. L. P., Nah, B. K. Y., Sim, B. K. L., Cheng, X., Zhang, Z., Mitra, K., Nakamura, T., Takahashi, H., Loomba, R., Zheng, M. H., Muthiah, M., & Huang, D. Q. (2025). The global burden of cirrhosis and other chronic liver diseases in 2021. Liver International, 45 (3), e70001. https://doi.org/10.1111/liv.70001
Tham, E. K. J., Tan, D. J. H., Danpanichkul, P., Ng, C. H., Syn, N., Koh, B., Lim, R. Y. Z., Wijarnpreecha, K., Teng, M. L. P., Nah, B. K. Y., Sim, B. K. L., Cheng, X., Zhang, Z., Mitra, K., Nakamura, T., Takahashi, H., Loomba, R., Zheng, M. H., Muthiah, M., & Huang, D. Q. (2025). The global burden of cirrhosis and other chronic liver diseases in 2021. Liver International, 45 (3), e70001. https://doi.org/10.1111/liv.70001
Tokatlı, M., & Balcı, C. (2026). Academic outcomes of geriatric medicine theses in internal medicine residency: A 25-year nationwide review in Türkiye. BMC Medical Education, 26 (1), 100.
Yılmaz, B., Mutlu Arı, P., Ayçiçek, H. B., & Yardımcı, G. (2024). Comprehensive analysis of publication of physical medicine and rehabilitation theses in Türkiye between years 2010 and 2020: Academic productivity and related factors. Turkish Journal of Physical Medicine and Rehabilitation, 70 (2), 233–240. https://doi.org/10.5606/tftrd.2024.12995
Younossi, Z. M., Kalligeros, M., & Henry, L. (2025). Epidemiology of metabolic dysfunction-associated steatotic liver disease. Clinical and Molecular Hepatology, 31 (Suppl), 32–50. https://doi.org/10.3350/cmh.2024.0431
Yüksel, M., İpekçi, T., & Tunçkıran, A. (2017). Publication rates of dissertations written in medical faculties of Turkey in the field of urology between the years 2008 and 2011, and citation analysis: A cross-sectional study. Turkish Journal of Urology, 44 (4), 341.

Details

Primary Language

English

Subjects

Primary Health Care

Journal Section

Research Article

Authors

Fatma Zehra Ağan ^*
0000-0002-3784-8553
Türkiye

Ahmet Uyanıkoğlu
0000-0003-4881-5244
Türkiye

Early Pub Date

August 31, 2026

Publication Date

-

Submission Date

August 21, 2026

Acceptance Date

August 31, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

IZ

https://izlik.org/JA38YS58YW

Cite

RIS / Bibtex

APA

Ağan, F. Z., & Uyanıkoğlu, A. (2026). Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025. International Journal of Nature and Life Sciences, Advanced Online Publication, 93-99. https://izlik.org/JA38YS58YW

AMA

1.Ağan FZ, Uyanıkoğlu A. Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025. Int J Nature Life Sci. 2026;(Advanced Online Publication):93-99. https://izlik.org/JA38YS58YW

Chicago

Ağan, Fatma Zehra, and Ahmet Uyanıkoğlu. 2026. “Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025”. International Journal of Nature and Life Sciences, no. Advanced Online Publication: 93-99. https://izlik.org/JA38YS58YW.

EndNote

Ağan FZ, Uyanıkoğlu A (August 1, 2026) Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025. International Journal of Nature and Life Sciences Advanced Online Publication 93–99.

IEEE

[1]F. Z. Ağan and A. Uyanıkoğlu, “Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025”, Int J Nature Life Sci, no. Advanced Online Publication, pp. 93–99, Aug. 2026, [Online]. Available: https://izlik.org/JA38YS58YW

ISNAD

Ağan, Fatma Zehra - Uyanıkoğlu, Ahmet. “Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025”. International Journal of Nature and Life Sciences. Advanced Online Publication (August 1, 2026): 93-99. https://izlik.org/JA38YS58YW.

JAMA

1.Ağan FZ, Uyanıkoğlu A. Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025. Int J Nature Life Sci. 2026;:93–99.

MLA

Ağan, Fatma Zehra, and Ahmet Uyanıkoğlu. “Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025”. International Journal of Nature and Life Sciences, no. Advanced Online Publication, Aug. 2026, pp. 93-99, https://izlik.org/JA38YS58YW.

Vancouver

1.Fatma Zehra Ağan, Ahmet Uyanıkoğlu. Bibliometric Characteristics and Publication Outcomes of Medical Specialty Theses on Cirrhosis in Türkiye: A Nationwide Analysis of National Thesis Center Data, 2011–2025. Int J Nature Life Sci [Internet]. 2026 Aug. 1;(Advanced Online Publication):93-9. Available from: https://izlik.org/JA38YS58YW