**2.2 Statistical study**

The participants were distributed according to the classification of the World Health Organization into three groups (normal, osteopenia, osteoporosis). The distribution of participants was according to the diagnosis of mild osteogenesis imperfecta into two groups (yes/no). The participants with mild osteogenesis imperfecta were distributed according to the groups (normal, osteopenia, osteoporosis) into three groups. For the genetic results, no COL1A2rs72658152 appeared in any participant, so an attempt was made to study the pathological
