Friday, October 19, 2007

Statistics of Late Implantation.

I saw this study in The New England Journal of Medicine ...

They studied hundreds of healthy women who were trying to conceive. In the most successful cases - implantation occurred 8-10 days after ovulation. Most interesting, they found that the later the egg implanted itself, the greater the chance the pregnancy would fail. In fact, there was a STRONG link between late implantation and early failures of the pregnancy.

"Among the women studied, 82 percent had early failures when implantation occurred more than 11 days after ovulation. That was a failure rate significantly higher than when eggs attached on the 11th day (52 percent), and more than three times as great as when they implanted on the 10th day (26 percent). The rate of early pregnancy loss through the 9th day after ovulation was 13 percent. "

Isn't that NUTS?

Let me break that down:
* 82% of pregnancies miscarried when the egg implanted after 11dpo.
* 52% of pregnancies miscarried when the egg implanted at 11dpo.
* 26% of pregnancies miscarried when the egg implanted at 10dpo.
* 13% of pregnancies miscarried when the egg implanted at 9dpo.

I wish they gave the stats for 7 & 8dpo though. Wow... It just shows how crazy high the miscarriage rate really is. And also how the earlier you get a BFP, the better the statistics are.

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