Prevalence of childhood obesity is increasing. Insulin resistance is a consequence of childhood obesity, and it has a keyrole in the development of cardiometabolic complications, such as diabetes mellitus. In the first part of this thesis, the epidemiology of insulin resistance has been described. Since there is no clear definition for insulin resistance, the prevalence of IR remains unclear. In addition, the use of IR in the screening for diabetes mellitus in obese children was evaluated. In the second part of the thesis, treatment of obese children with insulin resistance is discussed. In a randomized controlled trial of 18 months, children were treated with either metformin or placebo in addition to lifestyle intervention. Body mass index in children treated with metformin remained stable during the 18 months, whereas placebo-treated children had an...
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Prevalence of childhood obesity is increasing. Insulin resistance is a consequence of childhood obesity, and it has a keyrole in the development of cardiometabolic complications, such as diabetes mellitus. In the first part of this thesis, the epidemiology of insulin resistance has been described. Since there is no clear definition for insulin resistance, the prevalence of IR remains unclear. In addition, the use of IR in the screening for diabetes mellitus in obese children was evaluated. In the second part of the thesis, treatment of obese children with insulin resistance is discussed. In a randomized controlled trial of 18 months, children were treated with either metformin or placebo in addition to lifestyle intervention. Body mass index in children treated with metformin remained stable during the 18 months, whereas placebo-treated children had an increase in body mass index. Finally, the treatment with metformin under the strict circumstances of the clinical trial was compared to treatment with metformin in daily practice during 18 months. Both groups showed similar results regarding body mass index during metformin treatment.
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