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OBJETIVO: Analizar el patrón de la densidad mineral ósea (DMO), calcio y estradiol séricos, consumo de calcio, índice de masa corporal (IMC) y lactancia en adolescentes y adultas a 15, 90 y 365 días posparto (dpp). MATERIAL Y MÉTODOS: Cohorte prospectivo en 33 adolescentes y 39 adultas con evaluación antropométrica, dietética y ósea en L2-L4 y cuello de fémur; bioquímica con estradiol y calcio séricos. RESULTADOS: Las adolescentes aumentaron de los 15 a los 365 dpp 16% su DMO de L2-L4, las adultas 3%. La edad se asoció a este cambio (β=13.779, EE=3.5, p=0.001); la lactancia no se asoció (β=-0.705, EE=0.647, p=0.283). Las adultas presentaron mayor DMO de L2-L4 a 15, 90 y 365 dpp respectivamente (1.151vs 0.978g/cm², 1.195vs1.070g/cm², 1.195vs1.123g/cm², pOBJECTIVE: To analyze the pattern of bone mineral density (BMD), serum concentrations of estradiol and calcium levels, dietary calcium, body mass index (BMI), and lactation in adolescents and adult women at 15, 90, and 365 postpartum days (ppd). MATERIAL AND METHODS: A prospective cohort study was conducted of 33 adolescents and 39 adult women. Anthropometric and dietetic evaluations were performed, as well as evaluations of bone mineral density in L2-L4 and femur neck. Estradiol concentrations and calcium serum levels were determined. RESULTS: L2-L4 BMD increased by 16% in adolescents, and 3% in adult women from day 15 to 365 ppd. While age was associated with this change (β=13.779, EE=3.5, p=0.001), lactation was not (β=-0.705, EE=0.647, p=0.283). The adult women had a higher L2-L4 BMD at 15, 90, and 635 ppd (1.151 vs 0.978g/cm², 1.195 vs 1.070g/cm², 1.195 vs 1.123g/cm², respectively) (p |
