Tuesday, July 29, 2014

Interesting fact of the day!

I'm in the midst of analyzing data from my surveys to add to our book on HA recovery (more on that soon!!!)

I was looking at what percentage responded to Provera by getting a bleed, and how long after the last pill that bleed typically was.  I also decided to look at whether bleeding in response to Provera predicted recovery of natural cycles.


*  18% (48 / 256) responded to Provera the first time they tried it (most likely while working towards getting a diagnosis).
*  26% (31/119) responded to a subsequent Provera challenge.

*  The median time to response was three days after the last pill
*  95% bled by five days after the last pill,
*  All but one (out of 86 reporting time to bleed) responded by eight days after the last pill

The interesting fact of the day is that responding to Provera in no way predicted recovery of natural periods!

* 46% of those who bled in response to Provera restored natural cycles (prior to moving to treatment to get pregnant)
* 47% of those who did not bleed resumed natural cycles.

For all intents and purposes, the same.  I would have expected that bleeding in response to Provera would strongly predict regaining natural cycles.  Apparently not!