Tabák, A. G., Herder, C., Rathmann, W., Brunner, E. J. & Kivimäki, M. Prediabetes: A high-risk state for diabetes development. Lancet 379(9833), 2279–2290 (2012).
Bonora, E. & Tuomilehto, J. The pros and cons of diagnosing diabetes with A1C. Diabetes Care 34(SUPPL. 2), S184–S190 (2011).
WHO. Definition and diagnosis of diabetes mellitus and intermediate hyperglycemia. Int Diabet Fed. (2006).
World Health Organization. Global report on diabetes. Isbn 978, 6–86 (2016).
Al-Daghri, N. M. et al. Diabetes mellitus type 2 and other chronic non-communicable diseases in the central region, Saudi Arabia (Riyadh cohort 2): A decade of an epidemic. BMC Med. 9, 1–6 (2011).
Piette, J. D. & Kerr, E. A. The impact of comorbid chronic conditions on diabetes care. Diabetes Care 29(3), 725–731 (2006).
Tunceli, K. et al. The impact of diabetes on employment and work productivity. Diabetes Care 28(11), 2662–2667 (2005).
Wolde, H. F. et al. High hidden burden of diabetes mellitus among adults aged 18 years and above in urban northwest Ethiopia. J. Diabetes Res. 2020, 1–8 (2020).
Kirigia, J. M., Sambo, H. B., Sambo, L. G. & Barry, S. P. Economic burden of diabetes mellitus in the WHO African region. BMC Int. Health Hum. Rights. 9(1), 1–12 (2009).
Abdulai, T. et al. Prevalence of impaired fasting glucose, type 2 diabetes and associated risk factors in undiagnosed Chinese rural population: The Henan Rural Cohort Study. BMJ Open 9, e029628 (2019).
Özdemir, L. et al. The prevalence of diabetes and impaired glucose tolerance in Sivas, Central Anatolia, Turkey. Diabetes Care 28(4), 795–798 (2005).
Uloko, A. E., Musa, B. M. & Ramalan, M. A. Prevalence and risk factors for diabetes mellitus in Nigeria: A systematic review and meta-analysis. Diabetes Ther. 9(3), 1307–1316. https://doi.org/10.1007/s13300-018-0441-1 (2018).
Alemayehu, Z. et al. Prevalence of diabetes mellitus and associated factors in southern Ethiopia: A community based study. Ethiop. J. Health Sci. 28(4), 451 (2018).
Worede, A., Alemu, S., Gelaw, Y. A. & Abebe, M. The prevalence of impaired fasting glucose and undiagnosed diabetes mellitus and associated risk factors among adults living in a rural Koladiba town, northwest Ethiopia. BMC Res. Notes. 10, 1–7 (2017).
Zhang, Y. et al. Combined lifestyle factors and risk of incident type 2 diabetes and prognosis among individuals with type 2 diabetes: A systematic review and meta-analysis of prospective cohort studies. Diabetologia 63, 21–33 (2020).
Colberg, S. R. et al. Physical activity/exercise and diabetes: A position statement of the American Diabetes Association. Diabetes Care 39, 2065–2079 (2016).
Pulgaron, E. R. & Delamater, A. M. Obesity and type 2 diabetes in children: Epidemiology and treatment. Curr. Diab. Rep. 14(8), 1–21 (2015).
Hoy, D. et al. Assessing risk of bias in prevalence studies: Modification of an existing tool and evidence of interrater agreement. J. Clin. Epidemiol. 65(9), 934–939 (2012).
DerSimonian, R. & Laird, N. Meta-analysis in clinical trials. Control Clin. Trials. 7(3), 177–188 (1986).
Huedo-Medina, T. B., Sánchez-Meca, J., Marín-Martínez, F. & Botella, J. Assessing heterogeneity in meta-analysis: Q statistic or I 2 Index?. Psychol. Methods. 11(2), 193–206 (2006).
Duval, S. & Tweedie, R. A nonparametric, “Trim and Fill” method of accounting for publication bias in meta-analysis. J. Am. Stat. Assoc. 95(449), 89–98 (2000).
Moher, D. et al. Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement. PLoS Med. 6(7), e1000097 (2009).
Abebe, S. M., Berhane, Y., Worku, A. & Assefa, A. Diabetes mellitus in North West Ethiopia: A community based study. BMC Public Health 14(1), 1–8 (2014).
Dereje, N., Earsido, A., Temam, L. & Abebe, A. Prevalence and associated factors of diabetes mellitus in Hosanna Town, Southern Ethiopia. Ann. Glob. Health 86(1), 1–9 (2020).
Wondemagegn, A. T. et al. Undiagnosed diabetes mellitus and related factors in East Gojjam (NW Ethiopia) in 2016: A community-based study. J. Public Health Res. 6(1), 18–23 (2017).
Endris, T., Worede, A. & Asmelash, D. Prevalence of diabetes mellitus, prediabetes and its associated factors in Dessie Town, Northeast Ethiopia: A community-based study. Diabetes Metab. Syndr. Obes. Targets Ther. 12, 2799–2809 (2019).
Bantie, G. M. et al. Prevalence of undiagnosed diabetes mellitus and associated factors among adult residents of Bahir Dar city, northwest Ethiopia: A community-based cross-sectional study. BMJ Open 9(10), 1–7 (2019).
Ayele, B. H., Roba, H. S., Beyene, A. S. & Mengesha, M. M. Prevalent, uncontrolled, and undiagnosed diabetes mellitus among urban adults in Dire Dawa, Eastern Ethiopia: A population-based cross-sectional study. SAGE Open Med. 8, 205031212097523 (2020).
Tesfaye, T., Shikur, B., Shimels, T. & Firdu, N. Prevalence and factors associated with diabetes mellitus and impaired fasting glucose level among members of federal police commission residing in Addis Ababa. BMC Endocr. Disord. 16, 1–9. https://doi.org/10.1186/s12902-016-0150-6 (2016).
Zhang, N. et al. Type 2 diabetes mellitus unawareness, prevalence, trends and risk factors: National Health and Nutrition Examination Survey (NHANES) 1999–2010. J. Int. Med. Res. 45(2), 594–609 (2017).
Al-Lawati, J. A., Al Riyami, A. M., Mohammed, A. J. & Jousilahti, P. Increasing prevalence of diabetes mellitus in Oman. Diabet. Med. 19, 954–957 (2002).
Rosella, L. C., Lebenbaum, M., Fitzpatrick, T., Zuk, A. & Booth, G. L. Prevalence of prediabetes and undiagnosed diabetes in Canada (2007–2011) according to fasting plasma glucose and HbA1c screening criteria. Diabetes Care 38(7), 1299–1305 (2015).
Asmelash, D. et al. Undiagnosed diabetes mellitus and associated factors among psychiatric patients receiving antipsychotic drugs at The University of Gondar Hospital, Northwest Ethiopia. Ethiop. J. Health Sci. 28(1), 3–10 (2018).
Mirzaei, M., Rahmaninan, M., Mirzaei, M., Nadjarzadeh, A. & Dehghani Tafti, A. A. Epidemiology of diabetes mellitus, pre-diabetes, undiagnosed and uncontrolled diabetes in Central Iran: Results from Yazd health study. BMC Public Health 20(1), 1–9 (2020).
Bener, A. et al. Prevalence of diagnosed and undiagnosed diabetes mellitus and its risk factors in a population-based study of Qatar. Diabetes Res. Clin. Pract. 84(1), 99–106 (2009).
Megerssa, Y. C., Gebre, M. W., Birru, S. K., Goshu, A. R. & Tesfaye, D. Y. Prevalence of undiagnosed diabetes mellitus and its risk factors in elected institutions at Bishoftu town, East Shoa, Ethiopia. J. Diabetes Metab. https://doi.org/10.4172/2155-6156.S12-008 (2013).
Heidemann, C., Du, Y., Schubert, I., Rathmann, W. & Scheidt-Nave, C. Prävalenz und zeitliche Entwicklung des bekannten Diabetes mellitus: Ergebnisse der Studie zur Gesundheit Erwachsener in Deutschland (DEGS1). Bundesgesundheitsblatt – Gesundheitsforsch – Gesundheitsschutz. 56(5–6), 668–677 (2013).
Ministry of Health Malaysia. Malaysia Health Systems Research Report. Vol. I (Ministry of Health Malaysia, 2016).
Meme, N., Amwayi, S., Nganga, Z. & Buregyeya, E. Prevalence of undiagnosed diabetes and pre-diabetes among hypertensive patients attending Kiambu district Hospital, Kenya: A cross-sectional study. Pan Afr. Med. J. 22, 286 (2015).
Ahmad, J. et al. Prevalence of diabetes mellitus and its associated risk factors in age group of 20 years and above in Kashmir, India. Al Ameen J. Med. Sci. 4, 38–44 (2011).
Muyer, M. T. et al. Diabetes and intermediate hyperglycaemia in Kisantu, DR Congo: A cross-sectional prevalence study. BMJ Open 2(6), 1–7 (2012).
Mayega, R. W. et al. Diabetes and pre-diabetes among persons aged 35 to 60 years in Eastern Uganda: Prevalence and associated factors. PLoS ONE 8(8), 1–11 (2013).
Soewondo, P., Ferrario, A. & Tahapary, D. L. Challenges in diabetes management in Indonesia: A literature review. Glob. Health. 9(1), 1–17 (2013).
Correr, C. J. et al. Prevalence of people at risk of developing type 2 diabetes mellitus and the involvement of community pharmacies in a national screening campaign: A pioneer action in Brazil. Diabetol. Metab. Syndr. 12(1), 1–11. https://doi.org/10.1186/s13098-020-00593-5 (2020).
Demmer, R. T., Zuk, A. M., Rosenbaum, M. & Desvarieux, M. Prevalence of diagnosed and undiagnosed type 2 diabetes mellitus among us adolescents: Results from the continuous NHANES, 1999–2010. Am. J. Epidemiol. 178(7), 1106–1113 (2013).