"20% of pregnancies end in miscarriage."
I'm sure there is an explanation, but that number appears to be for older women in the 35 to 45 year old group. (medicalnewstoday.com). One study in Denmark, which included 1,221,546 pregnancies between 1978 and 1992, found the overall miscarriage rate was 13.5 percent (sciencealert.com). To credit your number you provided, the UCSB in previous research found that there was somewhere between 10 and 20 percent (sciencealert.com)number.
From what you posted, it appears miscarriage numbers are really high. I wonder what the history shows? Rural versus City. Ethnicity, nation, etc.
(post is archived)