Diabetes Epidemiology

During a population-based diabetes surveillance survey in an urban Indian cohort, 500 individuals with newly detected impaired fasting glucose are identified. The epidemiologist must assess the prevalence of undiagnosed diabetes in this subgroup. Which single investigation is most appropriate for large-scale population screening in this context?

According to the International Diabetes Federation (IDF) Diabetes Atlas, what is the estimated global prevalence of diabetes mellitus in adults (20–79 years) as of 2021?

A 42-year-old man from rural India attends a health camp for screening. He is asymptomatic with no prior history of diabetes. His fasting blood glucose is 118 mg/dL. Which investigation is most appropriate to confirm or exclude diabetes in this individual?

Regarding the epidemiology of Type 2 Diabetes Mellitus in India, all of the following statements are TRUE EXCEPT:

Among the complications of diabetes mellitus in India, what is the most common microvascular complication leading to morbidity and mortality?