In connection with the article entitled "A randomized trial comparing the rate of hypoglycemia – assessed using continuous glucose monitoring – in 125 preschool children with type 1 diabetes treated with insulin glargine or NPH insulin (the PRESCHOOL study)" which appeared in [1], we wish to bring the following correction to your attention: In the acknowledgement section, we would like to add the name of the 2 investigators from Turkey to the supporting information file: Turkey: Ayla Guven, Nurgün Kandemir.