不知道這批受試者當中多大比例有症狀。也不知測試假陽性多高。The sampling may not be random and

the result too sensitive to selection bias.

所有跟帖： 

• 1）kit sensitivity is about at 60% or 91%, specificity is 99.5%. -三絲- ♂ (0 bytes) () 04/18/2020 postreply 05:27:40

• 假陰性的會多 （80%）。sampling is biased towards facebook 白人女子組。 -三絲- ♂ (0 bytes) () 04/18/2020 postreply 05:30:30