Author: Jun Fei; Lin Fu; Ying Li; Hui-Xian Xiang; Ying Xiang; Meng-Die Li; Fang-Fang Liu; De-xiang Xu; Hui Zhao
                    Title: Reduction of lymphocyte at early stage elevates severity and death risk of COVID-19 patients: a hospital-based case-cohort study  Document date: 2020_4_6
                    ID: 8q1veo3q_35
                    
                    Snippet: patients (1, 7, 10, 11) . In addition, several reports showed that lymphocyte count was lower in severe COVID-19 patients than in common ones (12) . What factors lead to lymphocyte reduction on admission among COVID-19 patients remains obscure. In the present research, we analyzed the relationship between age and lymphocyte reduction among COVID-19 patients. Our results showed that almost half of patients' lymphocyte count and percentage were red.....
                    
                    
                    
                     
                    
                    
                    
                    
                        
                            
                                Document: patients (1, 7, 10, 11) . In addition, several reports showed that lymphocyte count was lower in severe COVID-19 patients than in common ones (12) . What factors lead to lymphocyte reduction on admission among COVID-19 patients remains obscure. In the present research, we analyzed the relationship between age and lymphocyte reduction among COVID-19 patients. Our results showed that almost half of patients' lymphocyte count and percentage were reduced to below normal range. Moreover, the number and percentage of lymphocytes were lower in COVID-19 patients over 70 years old than those of younger patients. The effects of gender and comorbidities on lymphocyte reduction were analyzed among COVID-19 patients. Our results showed that lymphocyte percentage were obviously decreased in males than those of females.
 
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