There has long been controversy about drug development and males. Historically males were mostly in all the older drug studies, females excluded--supposedly because they could become pregnant and mess the study up and drop out etc-- costly big bucks in the end. This is one factor we see in Statin use... and recently Canadians released a paper stating evidence shows females do not really need statins most of the time! Good evidence that they are useful was never collected on women until very recently!

So the bias in studies is typically men. Excluding the PCOS studies of course, and Hormone replacement therapy (HRT).
So you may find statistics that reflect the male bias.

The ratios for thyroid disease and autoimmune are shrinking.
There used to be a "rule" that males do not get myasthenia gravis until old age...and now we see young males with it. (on our board too). I think the vaccine rush is to blame, IMO. That factor is narrowing the ratios very quickly. The older thought was that female preponderance was because child bearing was the trigger..that some cells from the fetus escape into the maternal circulation and sensitize the mother setting an autoimmune cascade in motion in women who have the genetic tendency to over-react to foreign proteins.

But now we don't need that trigger at all. Vaccines with their contaminants and adjuvants, are providing a potent trigger regardless of age, or gender! The autoimmune arthritis from the Lyme vaccine was a HUGE event...and illustrates how the process works. It might be a bit smaller with other vaccines, but I think they are at the heart of much illness in our modern world.