amerikiwi
Mum of 2
- Joined
- Feb 26, 2009
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Does anyone know if FF actually publishes their statistical studies or just the snapshot conclusions.
In particular, this one about implant dips has peaked my interest during 2WW:
https://www.fertilityfriend.com/Faqs/Implantation-dip-study.html
The piece of info that I'm missing is how the initial breakdown of the sample: i.e. what proportion of the total sample were pregnancy vs. non-pregnancy. With this info, I can calculate a conditional probability of being pregnant given that the chart has shown an implant dip.
For example: If half their sample was pregnant, then based on that sample, a person who's chart shows an implant dip has a 67.65% chance of being pregnant.
If the sample was split 25/75 for pregnant/not pregnant, then the same person has only a 41.07% chance.
Any thoughts or ideas?
In particular, this one about implant dips has peaked my interest during 2WW:
https://www.fertilityfriend.com/Faqs/Implantation-dip-study.html
The piece of info that I'm missing is how the initial breakdown of the sample: i.e. what proportion of the total sample were pregnancy vs. non-pregnancy. With this info, I can calculate a conditional probability of being pregnant given that the chart has shown an implant dip.
For example: If half their sample was pregnant, then based on that sample, a person who's chart shows an implant dip has a 67.65% chance of being pregnant.
If the sample was split 25/75 for pregnant/not pregnant, then the same person has only a 41.07% chance.
Any thoughts or ideas?
