Vitamin D levels and clinical outcomes of SARS-CoV-2 Omicron subvariant BA.2 in children: A longitudinal cohort study

Peng, Denggao1,2; Huang, Hua3; Liu, Zhichao1; Gao, Yanzhang1; Liu, Yingxia1,2

2022-07-25

10.3389/fnut.2022.960859

Frontiers in Nutrition   Impact Factor & Quartile

2296-861X

ObjectiveTo investigate the picture between vitamin D levels and clinical outcomes of SARS-CoV-2 Omicron subvariant BA.2 in children. MethodsA retrospective, longitudinal cohort study was performed. All included hospitalized cases were divided into the sufficient (sVD) and insufficient vitamin D (iVD) groups according to whether their serum 25-hydroxyvitamin D [25(OH)D] concentration was >= 30 ng/mL. Dynamic changes in clinical parameters were observed for seven time periods within 28 days after admission. ResultsSerum 25(OH)D concentrations were significantly negatively correlated with age in the included cases (r = -0.6; P < 0.001). Compared with the iVD group (n = 80), the sVD group (n = 36) had higher interleukin-6 (18.4 vs. 12.9; P = 0.003) within the first day; higher procalcitonin within the first (0.15 vs. 0.1; P = 0.03), 2-3 (0.14 vs. 0.07; P = 0.03), 4-5 (0.21 vs. 0.07; P = 0.02) days; more lymphocytes within the first (1.6 vs. 1.2; P = 0.02), 2-3 (3.7 vs. 2; P = 0.001), 4-5 (3.9 vs. 2.1; P = 0.01) and 6-7 (4.9 vs. 2.7; P = 0.02) days; notably, higher cycle threshold for N gene (30.6 vs 19.8; P = 0.03) or ORF1ab gene (31.4 vs 20.1; P = 0.03) within 2 to 3 days. Pneumonia lesions were found in eleven and six cases in the iVD and sVD groups, respectively, without significant difference on computed tomography at admission. Six out of eleven and five out of six had a repeat computed tomography after 1-2 weeks. Lesion improvement was more significant in the sVD group (P = 0.04). ConclusionsChildren with vitamin D insufficiency might have poorer clinical outcomes in Omicron subvariant BA.2 infection, especially in older pediatric patients. Further studies are needed to assess effectiveness of supplements in reducing the same.

children Omicron subvariant SARS-CoV-2 vitamin D BA 2

SCI

English

First ; Corresponding

Shenzhen Longgang District Science and Technology Development Fund[LGKCXGZX2020002]

Nutrition & Dietetics

Nutrition & Dietetics

WOS:000838239800001

FRONTIERS MEDIA SA

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Peoples Hosp 3, Dept Emergency Med, Hosp 2, Shenzhen, Peoples R China
2.Univ South China, Grad Collaborat Training Base, Hengyang Med Sch, Shenzhen Peoples Hosp 3, Hengyang, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Peoples Hosp 3, Dept Radiol, Hosp 2, Shenzhen, Peoples R China

Peng, Denggao,Huang, Hua,Liu, Zhichao,et al. Vitamin D levels and clinical outcomes of SARS-CoV-2 Omicron subvariant BA.2 in children: A longitudinal cohort study[J]. Frontiers in Nutrition,2022,9.

Peng, Denggao,Huang, Hua,Liu, Zhichao,Gao, Yanzhang,&Liu, Yingxia.(2022).Vitamin D levels and clinical outcomes of SARS-CoV-2 Omicron subvariant BA.2 in children: A longitudinal cohort study.Frontiers in Nutrition,9.

Peng, Denggao,et al."Vitamin D levels and clinical outcomes of SARS-CoV-2 Omicron subvariant BA.2 in children: A longitudinal cohort study".Frontiers in Nutrition 9(2022).