This study was designed to assess the insulin injection location in a group of children who had their injection according to their daily practice, thought to lead to subcutaneous injections.


The location of the insulin deposit at the injection site was visualized using an ultrasound device.


The exact insulin injection location could be localized, and 18 of 59 injections (30.5%) (one injection for each child) were in the intramuscular tissue. Of the children who had intramuscular injection, 15 of 18 were boys. The children who had an intramuscular injection had a significantly lower percentile of BMI (mean ± SE: 47 ± 8 vs. 72 ± 4, P = 0.004), lower distance from skin surface to muscle fascia without a skinfold (5.6 ± 0.6 vs. 11 ± 0.7 mm, P < 0.0001), and a lower distance from skin surface to muscle fascia with a skinfold (8.1 ± 0.9 vs. 15.9 ± 0.8 mm, P < 0.0001) than children who had a subcutaneous insulin injection.


We identified a group of children at risk for intramuscular insulin injections and that may deserve specific injection technique and advice.

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