Epidemiology

What questions should be answered in epidemiology relevant to a medical condition?
What was the prevalence of this medical condition worldwide in 2010?
How should quality of reported prevalence of this medical condition be enhanced every year worldwide, continent by continent, and state by state?
What continent or state reported the greatest number of these cases in 2010?

History of this medical condition.

When was this medical condition first known to human beings?
Who set the criteria for diagnosis of this medical condition?
When were the criteria for diagnosis of this medical condition last updated?
What are the new recommendations to be included in diagnosis of this medical condition?
What should be levels of fasting blood sugar?
What blood chemistry analyzers or blood glucose machine is the most accurate?
How does one verify from time to time that a specific blood chemistry analyze or blood glucose machine is giving accurate results?