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What is the life expectancy of someone with brittle bone disease?

According to the Hospital for Special Surgery, people with the mildest and most common type of brittle bone disease, known as osteogenesis imperfecta (OI) type I, typically have a normal life expectancy. Therefore, answering the question, "what is the life expectancy of someone with brittle bone disease?" is not simple, as it varies widely based on the specific type and severity of the condition.