Life-course patterns of heavy menstrual bleeding and menstrual pain across multiple population-based cohorts

Background: Heavy menstrual bleeding (HMB) and menstrual pain (MP) are among the most common menstrual cycle related symptoms with substantial impacts on quality of life. Despite this, population-level evidence on their prevalence across the life course is scarce. Methods: We conducted descriptive analyses of six longitudinal population-based cohorts from the United Kingdom, United States, Norway, and Australia. We estimated cumulative prevalence (across all available timepoints) and age-specific point prevalence of HMB and MP. Cumulative prevalence estimates were stratified by sociodemographi

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