Comment on: Prevalence of diabetes mellitus in a Saudi community. Ann Saudi Med 2011;31(1):19-23

In the section on methodology, the characteristics of the population served by the department of primary care are not mentioned in the article. [...] it is not clear whether this department is the only center receiving patients from the defined geographical area since the availability, accessibility and acceptability factors related to the services provided will affect the obtained prevalence as well as the profile (age, gender) of the diabetic patients.Statistical tests mentioned in the methodology include univariate analysis, t test, Pearson correlation and linear regression but results do not show the application of any of these tests.