Trend is especially pronounced among Black, Hispanic and Asian participants, and those who report lower socioeconomic status

Girls in the United States had their first periods earlier over the last five decades and it took longer to experience regular cycles, a new study has found.

The study, published in JAMA Network Open, found the trend is especially pronounced among Black, Hispanic, Asian and mixed race participants, and among those who reported lower socioeconomic status.

“This is important because early menarche,” or a first period, “and irregular periods can signal physical and psychosocial problems later in life,” said Zifan Wang, a postdoctoral research fellow at Harvard University’s TH Chan School of Public Health and lead author of the study.

      • scrion@lemmy.world
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        5 months ago

        They could just cite the linked article for this:

        Although the study was large, it relies on self-reported information – which is generally considered less reliable than sources such as medical or financial records. In some cases, it would have required participants to think back decades. Still, the study will likely provide direction for future research.

          • Leg@lemmy.world
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            5 months ago

            I think you’d remember how old you were when your dong first started gushing blood for the rest of your life.

          • Mouselemming@sh.itjust.works
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            5 months ago

            Pretty fucking unlikely. Maybe if it’s the kind where the blood is brownish at first, they wouldn’t notice the first day, but once it gets thick and red and gushy by the beginning of the second day, it’s all the more alarming if you don’t know what to expect. Even if you learned about periods and aren’t worried you definitely remember that first one. I was 11 and it was summer so 11.4

          • scrion@lemmy.world
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            5 months ago

            I’m not qualified to answer this question, I merely provide citations for people who are too lazy to read the articles and simply go by social media post titles. These citations are also not necessarily an expression of my personal opinion.

            General remarks: Memory recall is measureable / quantifiable to a certain degree: https://journals.sagepub.com/doi/10.1177/0956797620954812

            Self-reports should only ever be used to augment better methods, but sometimes, it’s all we have.

    • DarkNightoftheSoul@mander.xyz
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      5 months ago

      You don’t just get to make an assertive claim without supporting evidence, even if it’s in contradiction of another assertive claim. That which can be asserted without evidence (like the opinion you express here, supported by the merest incredulity) can be dismissed without evidence (like everyone here is doing of your opinion).

      If you want to contradict the claim made without asserting your own claim contrary to, you must actually address the evidences for that claim, undermining, subverting, proving them false. This, successfully done, would lead an outside skeptic to the null hypothesis of “I don’t know,” rather than your frankly misogynistic hypothesis of, paraphrasing, “women don’t know what they’re talking about.”