To describe the natural history of a condition or disease. To describe the natural history of a condition or disease. To determine effectiveness or cost effectiveness of treatments/services and/or health care products. To measure or monitor safety and harm. To measure quality of care.
According to the NMSS, attacks or flare-ups of symptoms only qualify as exacerbations if: 1  they occur at least 30 days from an earlier flare-up. 2  symptoms last for 24 hours or longer.
According to conventional medical wisdom, menopause-related hot flashes fade away after six to 24 months. Not so, says a new study of women going through menopause. Hot flashes and night sweats last, on average, for about seven years and may go on for 11 years or more. The hormonal roller coaster that comes with the end of a womanâs childbearing years can trigger a range of symptoms. Up to 80% of women going through menopause experience hot flashes.