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做了少少網上尋找, 可能可以作為參考:
來源: http://www.microtia.us.com/index.html
What is the risk of recurrence of microtia within the family and what are the chances that a microtia patient could also have children with microtia?
When two people first conceive a child, the risk of that child’s having microtia is basically the same as any child born—one in 5-7,000. However, now that their child has microtia the risk jumps up to five percent, or put another way, 1 in 20 for subsequent children. These statistics are derived from the families of the first 1,000 children whose microtia I have repaired.
One in every 20 of these children has a member of the immediate family (parents, siblings, aunts, uncles, or grandparents) with microtia. The risk of a child with microtia eventually having a child of his/her own with microtia is also one in twenty.
以上網站的說法, 一位小耳症的家長生出小耳症的小孩的機會率是1/20 (5%). |
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