Infants born weighing less than 2500 grams can be classified into the Low Birth Weight (LBW) category. This classification is not based on gestational age, which makes LBW infants particularly vulnerable because their bodies are not fully prepared to face the extrauterine environment. There are several impacts associated with LBW, one of which is the incidence of neonatal jaundice. This condition occurs especially in LBW infants, leading to longer hospital stays. During the treatment period, the reduction in serum bilirubin levels must be supported by adequate nutritional intake and appropriate therapy. Nutritional intake may include exclusive breastfeeding, predominant breastfeeding, or a combination of both, while therapies include phototherapy, exchange transfusion, and pharmacological treatments. Providing nutrition as early as possible can help reduce bilirubin levels more quickly. Therefore, the purpose of this study was to determine the relationship between types of nutritional intake, therapy selection, and the length of stay in LBW infants with neonatal jaundice at Kanjuruhan Kepanjen Hospital, Malang Regency. The study used an observational analytic design with a cross-sectional approach and included 56 samples selected through purposive sampling. Data were collected using a form based on secondary data and analyzed using the Eta Test, with a correlation value of η = 0.438. The results indicate a moderate relationship between the type of nutritional intake and the length of stay in LBW infants with neonatal jaundice. This study also reported a significant difference in the average length of stay based on the type of nutritional intake, with an ANOVA test yielding a p-value of 0.004. This suggests a significant difference in the length of stay based on nutritional intake. These findings should be of particular concern to healthcare workers when providing nutritional care for LBW infants with neonatal jaundice. Keywords: LBW, neonatal jaundice, infant nutrition, therapy selection, hospitalization.
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