Algorithm used to determine fertility - mucus only?

[Andy]

Hi,

I'm new to the FAM and while deciding what apps to use I came across research that includes OvuView. I am confused by their results.

They compare OvuView with other symptothermal apps that use the Sensiplan method. They chose a combination of the Billings and Rötzer methods for OvuView. According to the researchers, OvuView only uses the cervical mucus method to determine the fertile window. My understanding is that the Rotzer method also takes into account the BBT. What gives?

Here is a link to the article. It was published recently in April 2018.

Here are screenshots of their results and what the scoring means:

[Andy]

I do wonder how accurate that article is, though. If you look at the "Efficacy of the underlying FAB method" category, the scoring doesn't make sense and they clearly had typos while making those tables.