When I'm 64 -- I'll still have hot flashes?

This large study is one of the few to quantify how prevalent troublesome hot flashes are for women at different ages, not just whether the women have them. It included 2,000 women 40 to 65 years old who were representative of the Australian population.

More than 90% of them used no hormonal contraception, menopausal hormone therapy, or other prescription drugs to control their symptoms. Among these women, the share having hot flashes ranged from 33% of the premenopausal women to 74% of the postmenopausal women younger than 55. Hot flashes persisted in 42% of the women 60 to 65 years old. Hot flashes were troublesome--that is, they were rated moderately to severely bothersome on a standard questionnaire--for about 3% of the premenopausal women, 28% of the postmenopausal women younger than 55, 15% of the postmenopausal women 55 to 59 years old, and 6% of the postmenopausal women 60 to 65 years old.

Among all the women surveyed, nearly 10% of the 60- to 65-year-olds were using hormone therapy, presumably because they still had troublesome symptoms. And fewer than 1% of the women in the oldest age group were using nonhormonal prescription therapies for hot flashes.

Among the women who used no vaginal estrogen, the rate of sexual symptoms (such as pain with intercourse) ranged from 44% in premenopause to 68% after menopause. Those sexual symptoms persisted in 62% of women 60 to 65 years old. Only 8% of the older women overall were using vaginal estrogen, despite the high rate of sexual symptoms.

Today, most guidelines recommend against using systemic hormones for women more than 10 years after menopause or after age 60 and to use them only for a limited time--ideally three to five years. But that leaves a group of women older than age 60 who have really bothersome symptoms without a hormone therapy option.

The "disconnect" between guideline recommendations and real-world clinical practice and the low utilization of effective nonhormonal therapies for hot flashes highlight that "menopause has gone 'off the radar' as an important health issue and remains undertreated," say the authors.

"Women need to know that they do still have options to treat their hot flashes and sexual symptoms, even if they are older or cannot or do not wish to use hormone therapy," says NAMS Executive Director Margery Gass, MD. "NAMS encourages all women bothered by their menopause symptoms to seek the help they need and not to give up."

The article, "Moderate to severe vasomotor and sexual symptoms remain problematic for women aged 60 to 65 years," will be published in the July 2015 print edition of Menopause.