Clinical characteristics and prognosis of SARS-CoV-2 infection in children with hematological malignancies: A multicenter, retrospective study in China
Weilin Wang , Xueju Xu , Songting Bai , Lu Wang , Jixia Luo , Daiyan Zhao , Ping Li , Qiuxia Fan , Chunmei Wang , Qianghua Yao , Bai Li , Dao Wang
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Abstract
Background
Data on SARSCoV-2 infection in children with hematological malignancies (HM) are limited. Here, we describe the clinical features of children with HM after SARS-CoV-2 infection and investigate the potential risk factors for disease severity.
Methods
Children with HM and SARS-CoV-2 infection from five hospitals in five cities in Henan, China from October 2022 to January 2023 were retrospectively included. Clinical information and Coronavirus disease 2019 (COVID-19) vaccination status were collected for further analyses.
Results
A total of 285 children with HM and SARS-CoV-2 infections were included. COVID-19 was asymptomatic in 3.2% of the patients (n = 9), mild in 89.1% (n = 254), moderate in 5.3% (n = 15), severe in 1.8% (n = 5), and critical in 0.7% (n = 2). Fever (92.4%) and cough (56.9%) were the most common symptoms. Most (249, 88.3%) children were managed at home during their COVID-19 illness. Of the 36 children admitted to the hospital, two required intensive care unit care, 11 required supplementary oxygen, and two non-invasive ventilation. A total of 283 (99.3%) children fully recovered and two (0.7%) died due to COVID-19. Significant risk factors for increased severity of infection in multivariable analyses were the presence of comorbidity (OR, 10.4; 95%CI, 2.8–38.7; p < 0.0001), neutropenia (OR, 10.4; 95%CI, 2.6–41.8; p = 0.001), and lymphopenia (OR, 4.2; 95%CI, 1.2–15.4; p = 0.029). A total of 30.9% (88/285) of the children received at least one dose of the inactivated COVID-19 vaccine at COVID-19 diagnosis. Compared with children who received at least one dose of the COVID-19 vaccine, fever was significantly more common in unvaccinated children (79.3% vs. 93.8%, p < 0.001).
Conclusions
Children with HM are not at an increased risk of severe COVID-19 compared to the general pediatric population. However, comorbidities such as lymphopenia and neutropenia may increase the risk of developing moderate or severe/critical disease. Our data may help in management decisions for this vulnerable population.
期刊介绍：
Pediatrics and Neonatology is the official peer-reviewed publication of the Taiwan Pediatric Association and The Society of Neonatology ROC, and is indexed in EMBASE and SCOPUS. Articles on clinical and laboratory research in pediatrics and related fields are eligible for consideration.
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