In an investigation of 100 women with localization-related epilepsy, anovul
atory cycles were significantly greater in proportion in women with 21-25 o
r 33-35 day cycles (Group B) and in women with less than 21 or more than 35
day cycles (Group C) than in women with normal 26-32 day intervals (Group
A). Groups B and C also had significantly higher estradiol/progesterone rat
ios than Group A. Nevertheless, almost (46.2%) of the anovulatory cycles oc
curred in women with normal 26-32 day cycles.