1. Which is more accurate, the early Tang Dynasty or the middle Tang Dynasty? As a screening tool, Neither the Early Tang Dynasty nor the Middle Tang Dynasty can be diagnosed. So it’s not accurate, There is no “accuracy”. Usually, [detection rate] and [false positive rate] are used to evaluate a certain screening method. High detection rate and low false positive rate are a good standard for screening methods. Judging from the current situation in China, The detection rate in the early Tang Dynasty is higher than that in the middle Tang Dynasty, and the false positive rate is lower than that in the middle Tang Dynasty. The detection rate in the early Tang Dynasty is about 85%, the false Read More …

Pregnancy is a happy event, But the joy will not last long, After receiving a circle of blessings, Next, we have to face a lot of entanglements. Which hospital to build a card for regular prenatal examination, which doctor to see, whether to give birth to oneself or cesarean section, whether to give birth to a boy or a girl, whether to be episiotomy. However, these entanglements are dwarfed by the entanglements of Down’s screening and amniocentesis. Don’t do Down’s screening struggle: what if the child is born with a Down’s syndrome baby (Tang Baobao)? After Down’s screening, it is also tangled: high-risk amniocentesis is very tangled, and low-risk is not without risk. Amniocentesis is tangled: if you don’t do Read More …