Infection and Drug Resistance (Sep 2024)

Hematocrit and Albumin Levels at Admission Predict in-Hospital Mortality in Pediatric COVID-19 Omicron Variant Patients

  • Zhu Y,
  • Li L,
  • Wang W,
  • Liu X,
  • Zhang MX,
  • Chen X,
  • Hou X,
  • Wang W,
  • Min T,
  • Liu J,
  • Liu L,
  • Liu C,
  • Jiang Z,
  • Wang Y,
  • Chang D,
  • Pan H

Journal volume & issue
Vol. Volume 17
pp. 4067 – 4078

Abstract

Read online

Yun Zhu,1,* Lingyan Li,2,* Wenxiao Wang,3,* Xiaodan Liu,1 Meng Xue Zhang,1 Xiumin Chen,4 Xiaofeng Hou,5 Weimei Wang,6 Tuo Min,7 Jinmei Liu,8 Lecui Liu,9 Chengjun Liu,10 Zhong Jiang,11 Yanping Wang,12 Dayun Chang,13 Hua Pan1 1Department of Pediatric Intensive Care Unit, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People’s Republic of China; 2Department of Pediatrics, Zibo Maternal and Child Health Hospital, Zibo, Shandong, People’s Republic of China; 3Department of Pediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, People’s Republic of China; 4Department of Pediatrics, Qingzhou People’s Hospital, Weifang, Shandong, People’s Republic of China; 5Department of Pediatrics, Laizhou City People’s Hospital, Laizhou, Shandong, People’s Republic of China; 6Department of Pediatrics, Haiyang People’s Hospital, Haiyang, Shandong, People’s Republic of China; 7Department of Pediatrics, Jining First People’s Hospital, Jining, Shandong, People’s Republic of China; 8Department of Pediatrics, West Coast New District Hospital of Chinese Medicine, Huangdao, Shandong, People’s Republic of China; 9Department of Neonatology, People’s Hospital of Wulian, Wulian, Shandong, People’s Republic of China; 10Department of Pediatrics, Linyi Central Hospital, Linyi, Shandong, People’s Republic of China; 11Department of Pediatrics, Rehabilitation University Qingdao Central Hospital, Qingdao, Shandong, People’s Republic of China; 12Department of Pediatrics, Qingdao Traditional Chinese Medicine Hospital, Qingdao, Shandong, People’s Republic of China; 13Department of Pediatrics, Weihai Municipal Hospital, Weihai, Shangdong, People’s Republic of China*These authors contributed equally to this workCorrespondence: Hua Pan, Department of Pediatric Intensive Care Unit, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, Shandong, 266003, People’s Republic of China, Tel +8618366205226, Email [email protected]: The Omicron variant is the present predominant COVID-19 strain worldwide. Accurate mortality prediction can facilitate risk stratification and targeted therapies. The study aimed to evaluate the feasibility of the difference in hematocrit and albumin (HCT-ALB) levels, alone or combined with the pediatric Sequential Organ Failure Assessment (pSOFA) score and lactate level, to predict the in-hospital mortality of COVID-19 Omicron variant-infected pediatric patients.Methods: A multicenter retrospective cohort study was performed for children with COVID-19 Omicron variant infection between December 2021 and January 2022. The demographics, clinical characteristics, hospital admission laboratory test results, and treatments were recorded. The in-hospital mortality was documented. The associations between HCT-ALB levels and mortality, and between HCT-ALB+pSOFA+lactate and mortality were analyzed.Results: A total of 119 children were included. The median age was 1.6 (interquartile range: 0.5– 6.2) years old. There were 70 boys and 49 girls. The mortality rate was 14.3% (17/119). The univariate and multivariate Cox regression analysis revealed that HCT-ALB was associated to in-hospital mortality (hazard ratio: 1.500, 95% confidence interval: 1.235– 1.822, p< 0.001). The receiver operating characteristic curve analysis revealed that HCT-ALB can be used to accurately predict in-hospital mortality at a cut-off value of − 0.7 (area under the curve: 0.888, sensitivity: 0.882, specificity: 0.225, Youden index: 0.657, p< 0.001). These patients were assigned into three groups based on the HCT-ALB level, pSOFA score, and lactate level (low-, medium-, and high-risk groups). The Kaplan-Meier analysis revealed that the mortality increased in the high-risk group, when compared to the medium-risk group (p< 0.01). The latter group had a higher mortality, when compared to the low-risk group (p< 0.01).Conclusion: The HCT-ALB level can be applied to predict the in-hospital mortality of children infected with the COVID-19 Omicron variant. Its combination with other variables can improve prediction performance.Keywords: COVID-19, omicron variant, hematocrit, albumin, mortality

Keywords