Prevalence and impact of vasomotor symptoms due to menopause among women in Brazil, Canada, Mexico, and Nordic Europe: a cross-sectional survey

OBJECTIVE: This study investigated the prevalence and impact of moderate to severe vasomotor symptoms (VMS), related treatment patterns, and experiences in women. METHODS: The primary objective was to assess the prevalence of moderate to severe menopause-related VMS among postmenopausal women aged 40 to 65 years in Brazil, Canada, Mexico, and four Nordic European countries (Denmark, Finland, Norway, and Sweden) using an online survey. Secondary objectives assessed impact of VMS among perimenopausal and postmenopausal women with moderate to severe VMS using the Menopause-Specific Quality of Life questionnaire, Work Productivity and Activity Impairment questionnaire, Patient-Reported Outcomes Measurement Information System sleep disturbances assessment, and questions regarding treatment patterns and attitudes toward symptoms and available treatments. RESULTS: Among 12,268 postmenopausal women, the prevalence of moderate to severe VMS was about 15.6% and was highest in Brazil (36.2%) and lowest in Nordic Europe (11.6%). Secondary analyses, conducted among 2,176 perimenopausal and postmenopausal women, showed that VMS affected quality of life across all domains measured and impaired work activities by as much as 30%. Greater symptom severity negatively affected sleep. Many women sought medical advice, but most (1,238 56.9%) were not receiving treatment for their VMS. The majority (>70%) considered menopause to be a natural part of aging. Those treated with prescription hormone therapy and nonhormone medications reported some safety/efficacy concerns. CONCLUSIONS: Among women from seven countries, moderate to severe menopause-related VMS were widespread, varied by region, and largely impaired quality of life, productivity, and/or sleep.