Introduction: Social consequences of pandemics, impacts on perinatal results, especially those who are the most vulnerable.
Objective: Determine effect of mitigation measures of the COVID 19 pandemic on perinatal results in the maternity hospital of the Pereira Rossell Hospital Center (CHPR).
Methods: A retrospective cross-sectional cohort study, with a comparative analysis of the semesters of March 15-30 September 2019 versus the same period in 2020 based on three variables low birth weight (LBW), preterm birth (PB), and small for gestational age (SGA).
Results: Incidence of PB (14.5%), LBW (12%) and SGA (6.9%) was higher in the 2020 semester during COVID 19 pandemic compared to the same period of 2019 (12.2%; 9.8%; 5.5%). PB showed a statistically significant increase of 21% in our hospital.
Conclusion: Mitigation measures of the COVID 19 pandemic, aggravate the effects of the global syndemic on the reproductive process of the social sectors most violated in their rights.
Keywords: COVID 19; low birthweight; mitigation measures; perinatal results; preterm birth; small for gestational age.