Prevalence and distribution of type 2 diabetes mellitus in Mexican adult population: a probabilistic survey

OBJECTIVE: To describe the prevalence, distribution and degree of control of type 2 diabetes (T2D) in Mexican population. MATERIAL AND METHODS: Subjects were classified as previously diagnosed T2D (PD); or as "finding of the survey" (FS) (glucose >or=126 mg/dL). Hemoglobin A1c was measured in PD-subjects. RESULTS: The prevalence for PD-T2D was 7.34% (95%CI 6.3, 8.5) and for FS 7.07% (95%CI 6.1, 8.1), summing 14.42%; (7.3 million diabetics). 5.3% of PD-T2D were in good, 38.4% in poor and 56.2% very poor control. Older age (OR=0.96, 95%CI 0.94, 0.97), lower BMI (OR=0.95, 95%CI 0.91, 1.0), were protective for poor control. Affiliation to private services (OR=1.77, 95%CI 0.98, 3.13), larger T2D duration (OR=1.05, 95%CI 1.01, 1.08), and combining oral medication and insulin (OR=16.1, 95%CI 1.61, 161) were riskier. CONCLUSIONS: We found an alarming prevalence of T2D in Mexican population; the majority of PD diabetics are in poor control. Research on the latter is warranted.