Objective To analyze the factors influencing the hospitalization time of preterm low birth weight infants, in order to provide a basis for shortening their hospital stay. Methods A total of 240 preterm low birth weight infants admitted to Zhongshan Hospital of Xiamen University from January 2019 to December 2020 were selected as study subjects. The hospitalization time was divided into two groups using a cutoff of 28 days, and the influencing factors on hospitalization time were analyzed. Results Univariate analysis showed that there were significant differences in feeding mode (χ2=15.105), dyspnea (χ2=37.604), feeding intolerance (abdominal distension χ2=19.288, vomiting χ2=27.539) between infants with hospitalization time ≥28 days and ＜28 days (P<0.05). Hospitalization time was positively correlated with weight loss (r=0.477), age at the lowest day of weight loss (r=0.390), age at regaining birth weight (r=0.454) and protein intake (r=0.396), and negatively correlated with the rate of weight gain (r=-0.655) and gestational age at birth (r=-0.454,P＜0.001). Multivariate Logistic regression analysis revealed that the rate of weight gain (OR=0.23, 95%CI:0.103 - 0.536), breastfeeding (OR=0.75, 95%CI: 0.596 - 0.954), gestational age at birth (OR=0.23, 95%CI:0.113 - 0.536), and caloric intake (OR=0.85, 95% CI: 0.726 - 0.985) were positively associated with hospitalization time ≥28 days, while dyspnea (OR=2.83, 95%CI: 1.205 - 6.656) was a risk factor for hospitalization time ≥28 days (P<0.001). Conclusions The clinical characteristics of preterm low birth weight infants are distinctive, and attention should be given to changes in dyspnea indicators, daily weight gain rate, feeding mode, gestational age at birth and caloric intake. Relevant treatments should be implemented to reduce the hospitalization time of these infants.
Key words
premature low birth weight infants /
growth and development /
hospitalization time
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