X-linked hypophosphatemic rickets is the most common form of rickets that runs in families. It affects about 1 in 20,000 newborns. Each of the other forms of hereditary hypophosphatemic rickets has been identified in only a few families.
How many people are affected by hereditary hypophosphatemic rickets ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by hereditary hypophosphatemic rickets ? [/INST] \n X-linked hypophosphatemic rickets is the most common form of rickets that runs in families. It affects about 1 in 20,000 newborns. Each of the other forms of hereditary hypophosphatemic rickets has been identified in only a few families.</s>