What percentage of women are affected by fibromyalgia?

2 per cent: Two percent. I personally do not believe this, but that is irrelevant. Between 1-3per cent, cdc estimates.

Quoting NFA: Fibromyalgia affects an estimated 10 million people in the U.S. And an estimated 3-6% of the world population. It is most prevalent in women —75-90 percent of the people who have fm are women —it also occurs in men and children of all ethnic groups. Usually between the ages of 20 to 50 years, but the incidence rises with age so that by age 80, approximately 8% meet criteria.

See below: 3-6% of the world population 70% of which are women.