Research Article

Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study

Volume: 8 April 21, 2026
Turkish Journal of Internal Medicine Cover
Turkish Journal of Internal Medicine
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Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study

Abstract

Objective: To determine the prevalence of dysglycemia, including impaired glucose tolerance (IGT) and newly diagnosed diabetes mellitus (NDDM), in individuals visiting healthcare centers across Türkiye on World Diabetes Day and to assess the associated demographic and clinical risk factors.

Methods: This multicenter cross-sectional study included 5353 participants from ten provinces. Random capillary blood glucose levels were measured, and the individuals were categorized as normoglycemic, IGT, NDDM, or known diabetes mellitus (KDM). Sociodemographic characteristics, anthropometrics, comorbidities, and smoking status were analyzed across the glycemic groups.

Results: Among all participants, 14.7% had IGT, 3% were newly diagnosed with diabetes, and 19.5% had known diabetes. Dysglycemia was significantly associated with older age, higher BMI, and increased prevalence of hypertension and cardiovascular disease (p<0.001). Educational attainment was inversely correlated with deteriorating glycemic levels. Marked interregional differences were observed in the distribution of dysglycemia. Gender-specific disparities were also noted, with a higher proportion of NDDM in men and KDM in women. Smoking was more prevalent among individuals with IGT and NDDM than among those with diabetes or normal glucose tolerance.

Conclusion: Dysglycemia, including undiagnosed diabetes, is highly prevalent in the Turkish population. These findings underscore the importance of cost-effective population-based screening strategies, particularly those targeting older, overweight, and underrepresented individuals. Regional tailoring and gender-sensitive approaches may enhance the effectiveness of diabetes prevention programs in the future.

Keywords

Ethical Statement

Ethical approval for this study was obtained from the Ethics Committee of the Antalya Training and Research Hospital (approval number 2024-379). This study adhered to the principles outlined in the Declaration of Helsinki.

References

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Details

Primary Language

English

Subjects

​Internal Diseases

Journal Section

Research Article

Authors

Abidin Gündoğdu This is me
0000-0002-6500-0648
Türkiye

Publication Date

April 21, 2026

Submission Date

November 23, 2025

Acceptance Date

April 3, 2026

Published in Issue

Year 2026 Volume: 8

DOI

https://doi.org/10.46310/tjim.1828705

IZ

https://izlik.org/JA66UY22BN

Cite

RIS / Bibtex
APA
Koca, N., Şahintürk, Y., İşsever, K., Demir, İ., Solmaz, İ., Tazegül, G., Yalçın, N., Kırık, A., Yaylacı, S., Araç, E., Oral, A., Konur, K., Yıldız, H., Sümbül, H. E., Kuloğlu, E., Yıldırım Akan, Ö., Alakuş, Ö. F., Çetin, S., Şen, H., … Uyar, S. (2026). Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study. Turkish Journal of Internal Medicine, 8, 67-73. https://doi.org/10.46310/tjim.1828705
AMA
1.Koca N, Şahintürk Y, İşsever K, et al. Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study. Turk J Int Med. 2026;8:67-73. doi:10.46310/tjim.1828705
Chicago
Koca, Nizameddin, Yasin Şahintürk, Kubilay İşsever, et al. 2026. “Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study”. Turkish Journal of Internal Medicine 8 (April): 67-73. https://doi.org/10.46310/tjim.1828705.
EndNote
Koca N, Şahintürk Y, İşsever K, Demir İ, Solmaz İ, Tazegül G, Yalçın N, Kırık A, Yaylacı S, Araç E, Oral A, Konur K, Yıldız H, Sümbül HE, Kuloğlu E, Yıldırım Akan Ö, Alakuş ÖF, Çetin S, Şen H, Gündoğdu A, Genç AB, Çekiç D, Küçük C, Beyazal Polat H, Karavar E, Avci BŞ, Berent Kaya B, Erişen MC, Uyar S (April 1, 2026) Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study. Turkish Journal of Internal Medicine 8 67–73.
IEEE
[1]N. Koca et al., “Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study”, Turk J Int Med, vol. 8, pp. 67–73, Apr. 2026, doi: 10.46310/tjim.1828705.
ISNAD
Koca, Nizameddin - Şahintürk, Yasin - İşsever, Kubilay - Demir, İsmail - Solmaz, İhsan - Tazegül, Gökhan - Yalçın, Nazif et al. “Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study”. Turkish Journal of Internal Medicine 8 (April 1, 2026): 67-73. https://doi.org/10.46310/tjim.1828705.
JAMA
1.Koca N, Şahintürk Y, İşsever K, Demir İ, Solmaz İ, Tazegül G, Yalçın N, Kırık A, Yaylacı S, Araç E, Oral A, Konur K, Yıldız H, Sümbül HE, Kuloğlu E, Yıldırım Akan Ö, Alakuş ÖF, Çetin S, Şen H, Gündoğdu A, Genç AB, Çekiç D, Küçük C, Beyazal Polat H, Karavar E, Avci BŞ, Berent Kaya B, Erişen MC, Uyar S. Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study. Turk J Int Med. 2026;8:67–73.
MLA
Koca, Nizameddin, et al. “Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study”. Turkish Journal of Internal Medicine, vol. 8, Apr. 2026, pp. 67-73, doi:10.46310/tjim.1828705.
Vancouver
1.Nizameddin Koca, Yasin Şahintürk, Kubilay İşsever, İsmail Demir, İhsan Solmaz, Gökhan Tazegül, Nazif Yalçın, Ali Kırık, Selçuk Yaylacı, Eşref Araç, Alihan Oral, Kamil Konur, Hamit Yıldız, Hilmi Erdem Sümbül, Ersin Kuloğlu, Özden Yıldırım Akan, Ömer Faruk Alakuş, Serhat Çetin, Hacer Şen, Abidin Gündoğdu, Ahmed Bilal Genç, Deniz Çekiç, Celalettin Küçük, Hatice Beyazal Polat, Erol Karavar, Begüm Şeyda Avci, Berçem Berent Kaya, Mehmet Can Erişen, Seyit Uyar. Glycemic Profiles of a Nation: Findings from Türkiye’s World Diabetes Day Screening Study. Turk J Int Med. 2026 Apr. 1;8:67-73. doi:10.46310/tjim.1828705

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