EPIDEMIOLOGY OF CONGENITAL ANOMALS IN A NATIONAL REFERENCE HOSPITAL IN ECUADOR

Abstract

Objective. To determine the prevalence, types, and associated risk factors of congenital anomalies in newborns admitted to Isidro Ayora Gynecological-Obstetric Hospital in Quito, Ecuador, between 2009-2022.

Methods. Cross-sectional study, using retrospective data from the Perinatal Information System database. Chi-square tests and simple and multiple binary logistic regression models were employed. R programming language was utilized.

Results. A total of 26,236 newborns were studied, of which 11.7% (3,075) were diagnosed with congenital anomalies. The most common were those related to the nervous system (25.6%), cardiorespiratory system (21.1%), and musculoskeletal system (16.1%). Maternal age over 35 years, pregnancy planning, and multiple pregnancies were associated with the presence of congenital anomalies. When analyzing risk factors by affected system, maternal age, maternal history of abortions and diabetes, folic acid consumption, and newborn's sex had both favorable and unfavorable effects on the development of congenital anomalies in a specific system.

Conclusions. This study investigated the prevalence and most common types of congenital anomalies, along with their associated risk factors, in a reference hospital. These findings were compared with reports from other regions. The results provide significant data on the epidemiology of congenital anomalies in the studied population, which can guide the development of preventive strategies. The need for further comprehensive research on this topic in the region is emphasized.