Factores de riesgo para parto prematuro en gestantes adolescentes en un hospital de tercer nivel en Lima-Perú en el contexto de la pandemia por COVID-19
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Advisors
Novoa Reyes, Rommy Helena Issue Date
2025-11-14
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Risk factors for preterm birth in adolescent pregnant women at a tertiary-level hospital in Lima, Peru, in the context of the COVID-19 pandemicAbstract
El parto prematuro es una de las principales causas de morbilidad y mortalidad neonatal en todo el mundo, especialmente en contextos de vulnerabilidad como el embarazo adolescente. La pandemia por COVID-19 trajo consigo cambios significativos en la atención prenatal, lo que podría haber influido en la aparición o intensificación de factores de riesgo para el parto prematuro. El presente estudio tuvo como objetivo identificar los factores de riesgo asociados al parto prematuro en gestantes adolescentes atendidas en el Instituto Nacional Materno Perinatal de Lima, Perú, durante el periodo 2020–2021. Se llevó a cabo un estudio retrospectivo de casos y controles, incluyendo a 360 adolescentes gestantes: 90 con parto prematuro y 270 con parto a término. Mediante análisis multivariado, se identificaron como factores de riesgo independientes para parto prematuro: edad materna menor, convivencia con la pareja, antecedente de abortos, ausencia o número insuficiente de controles prenatales, anemia, infección del tracto urinario, infección vaginal y ruptura prematura de membranas. La infección por COVID-19 y la preeclampsia no mostraron asociación estadísticamente significativa. Los hallazgos reflejan que, pese al contexto pandémico, los factores de riesgo observados coinciden con los previamente reportados en la literatura nacional e internacional, lo cual refuerza la necesidad de intervenciones preventivas focalizadas en adolescentes gestantes. Se concluye que la detección oportuna y el adecuado seguimiento prenatal continúan siendo fundamentales para reducir la incidencia de parto prematuro en esta población.Preterm birth remains one of the leading causes of neonatal morbidity and mortality worldwide, particularly among vulnerable populations such as pregnant adolescents. The COVID-19 pandemic brought significant disruptions to prenatal care, potentially modifying the presence or intensity of risk factors associated with preterm delivery. This study aimed to identify risk factors for preterm birth among adolescent mothers attended at the Instituto Nacional Materno Perinatal in Lima, Peru, during the period 2020–2021. A retrospective case-control study was conducted including 360 adolescent pregnancies: 90 cases (preterm births) and 270 controls (term births). Through multivariate logistic regression analysis, the following independent risk factors for preterm birth were identified: younger maternal age, cohabitation with a partner, history of previous abortions, lack of or incomplete prenatal care, anemia, urinary tract infection, vaginal infection, and premature rupture of membranes. COVID-19 infection and preeclampsia were not found to be significantly associated. Findings suggest that, despite the unique context of the pandemic, the risk factors observed remain consistent with those previously reported in national and international literature. This highlights the ongoing need for early identification and targeted prevention strategies for high-risk populations such as adolescent mothers. Strengthening access to timely and comprehensive prenatal care remains essential to reduce preterm birth rates in this vulnerable group.
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