Undersøgelsen fandt, at unge piger i Indien får deres første menstruation tidligere end deres mødre (12,5 år vs. 14 år). Dette fald i alder hænger sammen med livsstilsændringer, især en mere stillesiddende hverdag. Resultaterne tyder på, at tidlig menstruation primært påvirkes af fysisk aktivitetsniveau.
Titel på undersøgelse:
Study on Age of Menarche Between Generations and the Factors Associated With It.
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Hele abstrakt på originalsprog:
A comparative study in Mamandur, India, explored the secular decline in menarcheal age by surveying 100 adolescent girls and their mothers, revealing a notable generational shift. Using a semistructured questionnaire, the mean age of menarche was found to be 12.5 years (±1.42) for the girls and 14 years (±1.10) for their mothers, aligning with a global trend of decreasing menarcheal age by roughly one month per decade. Factors such as menstrual history, regularity, flow, and lifestyle habits—including outside food consumption, sedentary behavior, sleep, and diet—differed significantly between the groups, with polycystic ovary syndrome (PCOS) also noted. Univariate analysis pinpointed outside food consumption, sedentary lifestyle, and activity levels as significant, while multivariate analysis isolated sedentary lifestyle as the key driver of earlier menarche. This decline underscores how modern habits may accelerate puberty, distinguishing the daughters’ experiences from their mothers’.