The new analysis found that 32 of the 16,608 participants developed ovarian cancer during about 5 years of follow-up .
The new analysis found that 32 of the 16,608 participants developed ovarian cancer during about 5 years of follow-up .
The new analysis found that 32 of 16,608 participants developed ovarian cancer in about 5 1 / 2 years of follow-up , including 20 women taking hormones .