A reduced peripheral blood absolute lymphocyte count with an elevated neutrophil count has been a consistent observation in hospitalized coronavirus disease 2019 (COVID‐19) patients. In this brief meta‐analysis, the reduction of lymphocyte subset counts in COVID‐19 patients was investigated across 20 peer‐reviewed studies meeting criteria for reporting lymphocyte subset counts and COVID‐19 disease severity. CD4+ T cell, CD8+ T cell, B cell, NK cell, and total lymphocyte cell counts all showed statistically significant reduction in patients with severe/critical COVID‐19 disease compared to mild/moderate disease. T‐cell subsets showed the largest standardized magnitude of change. In some studies, multivariate analysis has shown that CD4 and/or CD8 T‐cells counts are independently predictive of patient outcomes. © 2020 International Society for Advancement of Cytometry

中文翻译：

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COVID-19 患者的淋巴细胞亚群计数：荟萃分析。

在住院的 2019 年冠状病毒病 (COVID-19) 患者中，外周血绝对淋巴细胞计数减少和中性粒细胞计数升高是一致的观察结果。在这项简短的荟萃分析中，对 20 项符合报告淋巴细胞亚群计数和 COVID-19 疾病严重程度标准的同行评审研究调查了 COVID-19 患者淋巴细胞亚群计数的减少。与轻度/中度疾病相比，重症/重症 COVID-19 疾病患者的 CD4+ T 细胞、CD8+ T 细胞、B 细胞、NK 细胞和总淋巴细胞计数均显示出统计学上的显着降低。T 细胞亚群显示出最大的标准化变化幅度。在一些研究中，多变量分析表明 CD4 和/或 CD8 T 细胞计数可独立预测患者预后。