These eight types of OI are described below:[4,5] Type I: This is the most common and mildest type in children that occur before puberty. About half of the affected children have this type of OI.

Constantinou, C.D., Nielsen, K.B. & Prockop, D.J. A lethal variant of osteogenesis imperfecta has a single base mutation that substitutes cystine for glycine 904 of the alpha (I) chain of type I ...