Determinants of Low Birth Weight: Physiological, Anthropometric, and Sociodemographic Factors in Mexican Adolescent Mothers

Objectives: Adolescent pregnancy is a public health concern with significant repercussions for mothers and infants, including low birth weight (LBW) as a complication. Short gynecological age and younger maternal age are hypothesized risk factors, but their influence remains unclear in Mexican populations, where adolescent pregnancies account for 1 in 5 births. This study aimed to evaluate the relationship between chronological age, gynecological age, age at menarche, anthropometry, and sociodemographic factors on the birth weight of infants born to Mexican adolescents.