Type 2 Diabetes Mellitus in Children - An Increasing Health Problem in Mexico

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Abstract
The incidence of type 2 diabetes mellitus (DM2) in children has increased worldwide and is commonly associated with overweight. Forty-four children with DM2 were studied by clinical histories, anthropometric measurements, and biochemical analysis. Homeostasis model assessment (HOMA-IR) and quantitative insulin sensitivity check index (QUICKI) were determined to evaluate insulin resistance. Only five patients presented normal body mass index (BMI); the remainder were overweight, and 76% had acanthosis nigricans. Laboratory results yielded hyperglycemia, elevated glycosylated hemoglobin, insulin and C-peptide. Elevated HOMA-IR and decreased QUICKI values suggest insulin resistance. No significant difference was found between sexes, although overweight in girls had more influence over blood pressure and lipid levels (p <0.05). Time from diagnosis and HOMA-IR yielded relevant values (p = 0.010). Laboratory results, QUICKI, and HOMA-IR values suggested that these patients present DM2 and decreased insulin sensitivity. We recommend prevention of overweight and sedentary life-style.