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Objective : To determine the prevalence of Intra-uterine Growth Restriction (IUGR) at San Jose University Hospital (HUSJ), describe its characteristics, and explore risk factors associated with IUGR. Materials and methods : Cross-sectional study of live neonates delivered in a referral university hospital located in Southwestern Colombia in 2013. Cases with inconsistent information were excluded. Stillbirths were not included. Neonates with intra-uterine growth restriction (IUGR) were defined as live neonates with a ponderal index (Rohrer) below the 10th percentile, PI = [weight (in grams) x 100] ÷ [length (in cm)]3. For the sample size, the following was taken into consideration: expected IUGR prevalence of 4%, 2% tolerated error, finite population correction and 20% non response, resulting in a final sample size of 400 subjects. A systematic random sampling was performed. A semistructured questionnaire including biological, social and demographic variables was used. The period of prevalence of IUGR was estimated. Factors associated with IUGR were explored using bivariate and multivariate analyses. The Student t test was used for continuous variables and the Chi square test was used for categorical variables. Results: Overall, 392 neonates were included in the analysis, and 8 were excluded because of inconsistent information. There were 79 neonates with IUGR, for a prevalence of 20.15%. When the risk factors were explored, a positive association was found between IUGR and inadequate weight gain (OR = 2.35; 95% CI: 1.15-4.82), history of IUGR (OR = 3.26; 95% CI: 1.08-9.78), threat of preterm delivery (OR = 3.58; 95% CI: 1.15-11.1), and prior C-section (OR = 2.64; 95% CI: 1.24-5.60), and a negative association was between mestizo ethnic background and white race (OR 0.25; 95% CI: 0.07-0.91). Conclusion : The prevalence was found to be 20.15%, which is higher than that reported in other institutions of similar complexity level.

Prevalencia de restricción del crecimiento intrauterino en el Hospital Universitario San José, Popayán (Colombia), 2013