 Corresponding author: Pujiani Pujiani Copyright © 2023 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0. The effectiveness of using plastic wrap and cloth swaddle methods to increase the body temperature of low-birth-weight infants with hypothermia Pujiani Pujiani * , Ida Dwi Nur Islamiati and M Zulfikar Asumta Department of Nursing, Faculty of Health, University of Pesantren Tinggi Darul Ulum, Jombang, Indonesia. World Journal of Biology Pharmacy and Health Sciences, 2023, 13(01), 465–469 Publication history: Received on 12 December 2022; revised on 25 January 2023; accepted on 27 January 2023 Article DOI: https://doi.org/10.30574/wjbphs.2023.13.1.0060 Abstract Hypothermia is a problem that LBW infants often experience. Hypothermia occurs because the baby's ability to maintain heat is minimal. It may be due to nonoptimal muscle growth, thin subcutis fat, little brown fat reserves, not yet optimal temperature-regulating nervous system, and the ratio of body surface area is relatively larger than body weight. This study aims to determine the effectiveness of plastic wrap and cloth swaddles methods in increasing the body temperature of LBW infants with hypothermia. The method used is a quasi-experimental approach with a two-group pre-posttest design. The sample in this study amounted to 30 infants, with 15 infants with plastic wrap intervention and 15 infants with cloth swaddling intervention, taken with accidental sampling technique. The results of the Wilcoxon test with α = 0.05 showed a p-value of 0.001 in the plastic wrap intervention group and a p-value of 0.001 in the cloth swaddling intervention. In the Mann-Whitney test with α = 0.05, the results obtained a p-value of 0.850. It was concluded that there was a significant difference between the temperature before and after the intervention of plastic wrap and cloth swaddle, which meant that there was an effect of using plastic wrap and cloth swaddling on the increase in body temperature of LBW infants with hypothermia. Using plastic wrap and cloth swaddles can increase the body temperature of LBW infants with hypothermia. There is no significant difference in the increase in LBW infants' temperatures given the plastic wrap intervention and the cloth swaddle intervention. Keywords: LBW; Cloth swaddle; Plastic wrap; Body temperature 1. Introduction One of the causes of infant death is Low Birth Weight (LBW). More than 1 million babies die every year in the world due to premature and LBW. The severity of the LBW problem causes the baby to be treated for a long time in the hospital, leading to increased hospital costs and disruption of interactions between family members. Hypothermia is a problem often encountered in the care of infants with low birth weight (LBW). Hypothermia is one of the causes of death in newborns and low birth weight infants worldwide, including in Indonesia. Hypothermia occurs due to a decrease in body temperature caused by various conditions, primarily due to the high demand for oxygen and a decrease in room temperature. Low birth weight infants have subcutaneous fat, brown fat, and low glycogen stores, so they are at risk of experiencing body temperature instability (Lawn, 2013). Several treatments for hypothermia in LBW infants include the incubator method, the kangaroo method, and the plastic bag/wrap method. The incubator method has constraints, namely the limited number of equipment, minimal skin-to- skin contact, and high costs (Notoatmojo, 2012; Maryunani, 2013). Meanwhile, the kangaroo method has several obstacles; namely, mothers who are not healthy enough after giving birth will not be optimal in carrying out this method. In addition, mothers who have just given birth are generally reluctant to apply the kangaroo method. Methods to