Cad. Saúde Colet., 2018, Rio de Janeiro, 26 (1) ResumoIntrodução: A retinopatia da prematuridade (ROP) é uma doença vasoproliferativa, que afeta a retina das crianças que nascem prematuramente; assim, este estudo propôs identificar fatores associados e predizer a retinopatia na prematuridade. Método: Realizou-se um estudo transversal, com recém-nascidos prematuros, dividindo-os em dois grupos: com e sem retinopatia. As variáveis foram categorizadas por meio do teste da razão de verossimilhança e as variáveis que obtiveram p-valores menores que 0,2 foram analisadas por um modelo logístico múltiplo. A capacidade de predição do modelo foi realizada por meio da construção da curva ROC. Resultados: Dos 296 recém-nascidos, 32 (10,81%) apresentaram retinopatia. No modelo logístico, as variáveis que apresentaram fator de risco foram idade gestacional ≤ 30 semanas (p-valor=0,0214), peso ao nascer ≤ 1.250 gramas (p-valor=0,0013) e escore Apgar no primeiro minuto < 7 (p-valor=0,0352). A curva ROC com sensibilidade 0,771 e especificidade 0,774 evidenciou o modelo com precisão de 0,8448 e ponto de probabilidade de 0,79. Conclusões: Este modelo pode ser usado para predição de retinopatia em recém-nascidos prematuros com um fator de risco de 0,79, destacando que estes necessitam de maior atenção. Palavras-chave: retinopatia da prematuridade; fatores de risco; modelos logísticos. Abstract Introduction: Retinopathy of prematurity (ROP) is a vasoproliferative disease that affects the retina of prematurely born children. Therefore, this study proposed to identify associated factors and to predict retinopathy in prematurity. Method: A cross-sectional study including preterm newborns divided into two groups: with and without retinopathy. The variables were categorized using the likelihood ratio test, and the variables with p-values less than 0.2 were analyzed by a multiple logistic model. The model used the construction of a Receiver Operating Characteristic (ROC) curve as predicting tool. Results: Of the 296 newborns, 32 (10.81%) had retinopathy. The following variables represented a risk factor according to the logistic model: gestational age ≤ 30 weeks (p-value = 0.0214), birth weight ≤ 1250 grams (p-value = 0.0013) and Apgar score at 1 minute <7 (p-value = 0.0352). The ROC curve with sensitivity of 0.771 and specificity of 0.774 was a precise model, showing accuracy of 0.8448 and a probability point of 0.79. Conclusions: This model can be used to predict retinopathy in premature newborns with a risk factor of 0.79, emphasizing that the need for additional attention.
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