Seizure frequency linked to the menstrual cycle

[Bernard]

It appears that this article is referring to non-catamenial epilepsy. (Emphasis is mine):

Menstrual cycles appear to influence seizure frequency in women with epilepsy, a U.S. study finds.

In women with epilepsy, having a shorter or longer menstrual cycle reduces ovulation, and a lack of ovulation boosts the frequency of seizures, the study authors found.

The findings were presented Thursday at the American Academy of Neurology annual meeting, in San Diego.

... On average, seizures occurred every four days in ovulatory cycles and about every three days during cycles with no ovulation.

"These results support the hypothesis that seizure frequency is affected by ovulation and ovulation is correlated with cycle length," Herzog said.

Menstrual Cycle May Impact Epilepsy