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Vasomotor symptom prevalence by years to/from final menstrual period. Six studies [2,17–21] provided data for the main meta-analysis. One [2] was longitudinal, and the others were cross-sectional. The onset of menopause (Y0) coincides with the final menstrual period (FMP). One year after FMP corresponds to Y1, two years after, Y2, etc, whereas Y−1 represents 1 year before FMP.
