• Junsheng Jiang, Yueyan Mao, Qian Zhou, and Jiabo Wu.
• Department of Pediatrics, Linping Branch, the Second Affiliated Hospital of Zhejiang University, Hangzhou, China.
• Medicine (Baltimore). 2023 Sep 1; 102 (35): e34987e34987.

AbstractTo determine whether neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are correlated with bronchopulmonary dysplasia (BPD) on the first day of prematurity and to help with early warning, identification, and intervention in the development of BPD. From January 2017 to June 2022, newborns who were diagnosed with BPD conducted a retrospective cohort study. Complete blood cells were measured within the first 24 hours of life in preterm neonates of 32 gestational weeks with BPD as the observation group and non-BPD infants as the control group. In all groups, the NLR and PLR levels were measured. Both univariate and multivariate logistic regression analyses were used to evaluate the data. In this research 76 cases of non-BPD and 48 cases of BPD were used as controls. Compared with the non-BPD group, the NLR and PLR levels were considerably higher in the BPD group. Logistic regression analysis suggested that NLR and PLR were independent risk factors for BPD (OR [odds ratio]: 3.786; 95% CI [confidence interval]: 1.75-8.16; P < .05; OR: 3.391; 95% CI: 1.85-28.78; P < .05). The findings may demonstrate that higher NLR and PLR are independently and significantly associated with the development of BPD.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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