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Table 2 presents the average menstrual cycle length and variability for AWHS participants in different age groups. Age was determined by the self-reported birth year and the year each cycle was tracked in the Health app.
29 maj 2023 · Here we examine the variation of menstrual cycle length by age, ethnicity, and body weight using 165,668 cycles from 12,608 participants in the US using mobile menstrual tracking apps.
1 paź 2022 · In this large digital cohort study, we collected menstrual cycle data from menstrual tracking apps and factors related to menstruation from surveys to comprehensively compare the distribution of menstrual cycle length by age, race and ethnicity, and body mass index in a diverse US population.
29 maj 2024 · We considered the following self-reported variables to evaluate whether the temporal trends in age at menarche or time to regularity differ by sociodemographic factors: (1) self-identified race and ethnicity (Asian, Hispanic, non-Hispanic Black, non-Hispanic White, and other and multiple races (including American Indian or Alaska Native, Middle ...
29 maj 2024 · A subset of participants (61,932) self-reported the time it took for their menstrual cycle to become regular and were divided into five categories: up to two years, between three and four...
27 sie 2019 · Cycle characteristics by cycle length. Table 1 lists the mean cycle lengths, follicular phase lengths, luteal phase lengths and bleed lengths with 95% confidence intervals (CI) in cohorts...
7 lut 2020 · Natural hormonal changes during menstrual cycle should be considered for diagnosis and treatment of dry eye in young healthy women. Little is known about the ocular surface changes over the menstrual cycle in young women and the interactions with lifestyle factors.
