scholarly journals Clinical Characteristics of SARS-CoV-2 Pneumonia Compared to Controls in Chinese Han Population

2020 ◽  
Author(s):  
Yang Xu ◽  
Yi-rong Li ◽  
Qiang Zeng ◽  
Zhi-bing Lu ◽  
Yong-zhe Li ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Clinical Characteristics ◽  
Invasive Mechanical Ventilation ◽  
Case Series ◽  
Hospitalized Patients ◽  
Chinese Han Population ◽  
Common Symptom ◽  
Chinese Han ◽  
Han Population ◽  
Normal Controls

AbstractBackgroundIn December 2019, novel coronavirus (SARS-CoV-2) infected pneumonia occurred in Wuhan, China. The number of cases has increased rapidly but information on the clinical characteristics of SARS-CoV-2 pneumonia without comorbidities compared to normal controls in Chinese Han population is limited. Our objective is to describe the epidemiological and clinical characteristics of SARS-CoV-2 pneumonia without comorbidities compared to normal controls in the Chinese Han population.MethodsRetrospective, multi-center case series of the 69 consecutive hospitalized patients with confirmed SARS-CoV-2 pneumonia, from February 7 to February 28, 2020; final date of follow-up was February 29, 2020.ResultsThe study population included 69 hospitalized patients with confirmed SARS-CoV-2 pneumonia without comorbidities and 14,117 normal controls. 50.7% patients were male and 49.3% were female; 1.5% patients were asymptomatic cases, 63.8% patients were mild cases, and 36.2% patients were severe or critical cases. Compared with mild patients (n=44), severe or critical patients (n=25) were significantly older (median age, 67 years [IQR, 58-79] vs. 49 years [IQR, 36-60]; p<0.01). Fever was present in 98.6% of the patients. The second most common symptom was cough (62.3%), fatigue (58.0%), sputum (39.1%), and headache (33.3%). The median incubation period was 4 days (IQR, 2 to 7). Leukocyte count was 74.1% of normal controls and lymphocyte count was 45.9% of normal controls. The phenomenon of lymphocyte depletion (PLD) observed in severe or critical cases in 100%. Levels of lactate dehydrogenase, D-dimer, procalcitonin, and interleukin-6 were showed significant differences between mild and severe or critical cases. Chest computed tomographic scans showed bilateral patchy patterns (49.3%), local patchy shadowing (29.0%), and ground glass opacity (21.7%). 7.3% patients were diagnosed ARDS, 7.3% patients were diagnosed acute cardiac injury (troponin I >28 pg/mL) and 4.4% patients were diagnosed fungal infections or shock. 4.3% patients have been discharged; 1.5% patient had died; 1.5% patient had recovery.ConclusionsIn this multicenter case series of 69 patients without comorbidities, the full spectrum of asymptomatic, mild, severe, and critical cases is described. 50.7% patients were male and 49.3% were female; 1.5% patients were asymptomatic cases, 63.8% patients were mild cases, and 36.2% patients were severe or critical cases. 4.3% patients have been discharged; 1.5% patient had died; 1.5% patient had recovery. Among the 25 patients with severe or critical disease, 12.0% patients were underwent non-invasive mechanical ventilation, 8.0% patients underwent invasive mechanical ventilation, and 4.0% patients died.

scholarly journals Mortality of COVID-19 is Associated with Cellular Immune Function Compared to Immune Function in Chinese Han Population

2020 ◽  
Author(s):  
Qiang Zeng ◽  
Yong-zhe Li ◽  
Gang Huang ◽  
Wei Wu ◽  
Sheng-yong Dong ◽  
...  
Keyword(s):  
Immune Function ◽  
Clinical Characteristics ◽  
Chinese Han Population ◽  
Common Symptom ◽  
Reference Ranges ◽  
Chinese Han ◽  
Han Population ◽  
Cellular Immune Function ◽  
Cellular Immune ◽  
Normal Controls

AbstractIn December 2019, novel coronavirus (SARS-CoV-2) infected pneumonia occurred in Wuhan, China. The number of cases has increased rapidly but information on the clinical characteristics of SARS-CoV-2 pneumonia compared to normal controls in Chinese Han population is limited. Our objective is to describe the clinical characteristics of SARS-CoV-2 pneumonia compared to normal controls in the Chinese Han population. In this case series of 752 patients, the full spectrum of cases is described. Fever was present in 86-90% of the patients. The second most common symptom was cough (49.1-51.0%), fatigue (25.2-27.1%), sputum (20.0-23.1%), and headache (9.8-11.1%). the mortality rate is 4.6% in Wuhan, 1.9% in Beijing, and 0.9% in Shanghai. Our findings showed that the levels of lymphocytes were 0.8(IQR, 0.6-1.1)109/L in Wuhan, 1.0(IQR, 0.7-1.4)109/L in Beijing, and 1.1 (IQR, 0.8-1.5) 109/L in Shanghai before admission to hospitals, respectively, indicating that cellular immune function might relate to the mortality. Based on the reference ranges of normal Chinese Han population and the data of the critically ill patients we have observed, it is recommended that reference ranges of people at high risk of COVID-19 infection are CD3+ lymphocytes below 900 cells/mm3, CD4+ lymphocytes below 500 cells/mm3, and CD8+ lymphocytes below 300 cells/mm3.

scholarly journals Prediction of gastric cancer risk: association between ZBTB20 genetic variance and gastric cancer risk in Chinese Han population

2020 ◽  
Vol 40 (9) ◽  
Author(s):  
Fei Bai ◽  
Ke Xiao
Keyword(s):  
Gastric Cancer ◽  
Cancer Risk ◽  
Clinical Characteristics ◽  
Protective Factor ◽  
Univariate Analysis ◽  
Genetic Models ◽  
Chinese Han Population ◽  
Gastric Cancer Risk ◽  
Chinese Han ◽  
Han Population

Abstract Background: Gastric cancer (GC) is a complex multifactorial disease. Previous studies have revealed genetic variations associated with the risk of gastric cancer. The purpose of the present study was to determine the correlation between single-nucleotide polymorphisms (SNPs) of ZBTB20 and the risk of gastric cancer in Chinese Han population. Methods: We conducted a ‘case–control’ study involving 509 GC patients and 507 healthy individuals. We selected four SNPs of ZBTB20 (10934270 T/C, rs9288999 G/A, rs9841504 G/C and rs73230612 C/T), and used logistic regression to analyze the relationship between those SNPs and GC risk under different genetic models; multi-factor dimensionality reduction (MDR) was used to analyze the interaction of “SNP–SNP” in gastric cancer risk; ANOVA and univariate analysis were used to analyze the differences in clinical characteristics among different genotypes. Results: Our results showed that ZBTB20 rs9288999 is a protective factor for the risk of gastric cancer in multiple genetic models, of which the homozygous model is the most significant (OR = 0.48, P=0.0003); we also found that rs9288999 showed a significant correlation with reducing the risk of gastric cancer in different subgroups (BMI; age; gender; smoking or drinking status; adenocarcinoma); rs9841504 is associated with increased GC risk in the participants with BMI&gt;24 kg/m2; rs9841504 and rs73230612 are certainly associated with clinical characteristics of platelet and carbohydrate antigen 242, respectively. Conclusion: Our results suggest that ZBTB20 rs9288999 may be important for reducing the risk of GC in the Chinese Han population.

No association between thrombosis and factor V gene polymorphisms in Chinese Han population

2003 ◽  
Vol 89 (03) ◽  
pp. 446-451 ◽  
Author(s):  
Hu Yanqing ◽  
Xie Qinzhi ◽  
Jian Zaifu ◽  
Wang Guangping ◽  
Zuo Xiaoxia ◽  
...  
Keyword(s):  
Direct Sequencing ◽  
Coagulation Factor ◽  
Chinese Han Population ◽  
Factor V ◽  
Chinese Han ◽  
Han Population ◽  
Apc Resistance ◽  
Factor V Gene ◽  
V Gene ◽  
Normal Controls

SummaryActivated protein C resistance (APCR) is the most common hereditary condition of thrombosis in Western countries. And it is significantly linked to a single nucleotide polymorphisms (SNPs) in the coagulation factor V gene that results in the mutations at R506, R306 and HR2 alleles. To determine the prevalence of APCR and its association with the factor V gene SNPs in Chinese Han thrombotic patients, we investigated a total of 346 Chinese thrombotic patients and 140 normal controls for APCR using the APTT-based assays, according to manufacturer’s instructions, APC ratio ≦2 indicated APC resistance. Mutations of factor V at R506, R306, HR2 allele were detected by PCRMnl/I, Bst/NI, Rsa/I digestion as described before respectively. The results showed that the incidence of APC resistance were 12.0% (12 of 100 cases) in acute cerebral thrombosis (ACT) patients (P <0.05), 13.5% (13 of 96 cases) in acute myocardial infarction (AMI) patients (P <0.05), 16.7% (10 of 60 cases) in deep venous thrombosis (DVT) patients (P <0.05), 15.6% (14 of 90 cases) in systemic lupus erythematosus (SLE) patients (P <0.05) and 5.0% (7 of 140 cases) in normal controls. APCR is associated with thrombotic events. But no factor V R506Q mutation (FV Leiden) was found in all 5 groups. Only one AMI patient and one DVT patient revealed heterozygous R306G mutation, which was confirmed by direct sequencing PCR products. Additionally, two SLE patients showed to be heterozygous HR2 allele for the first time in the Chinese Han population. We concluded that APC resistance in the Chinese Han population might not be associated with mutations of factor V at R506, R306 and HR2 polymorphisms. Some other factors might contribute to APC resistance in the Chinese Han population.

scholarly journals 439. Clinical Characteristics and Mortality of an Initial Cohort of COVID-19 Patients in México City

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S287-S287
Author(s):  
Paulo F Castañeda-Mendez ◽  
José Luis Castillo-Álvarez ◽  
Armando Barragán-Reyes ◽  
Daniela Bay-Sansores ◽  
Jessica Isabel Pulido-Enríquez ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Mexico City ◽  
Clinical Characteristics ◽  
Care Center ◽  
Invasive Mechanical Ventilation ◽  
Tertiary Care ◽  
Case Series ◽  
Special Focus ◽  
Tertiary Care Center ◽  
Initial Cohort

Abstract Background As of today, more than 8 million people have been infected and around 440,000 of them have lost their lives due to complications of SARS-CoV-2 infection. The first confirmed case of COVID-19 in Mexico was on February 28, 2020, and currently, there are more than 150,300 confirmed cases and more than 17,500 deaths have been reported, this work presents the characteristics of the first cases on a tertiary care center with special focus on common comorbidities in Mexicans. Methods We conducted a case series of patients with the diagnosis of pneumonia due to SARS-CoV-2 virus admitted to a tertiary care center in Mexico City, between March 14th and May 4th, 2020. Data collected included demographic information, comorbidities, clinical presentation, and outcomes. Regarding clinical outcomes, we measured the need of admission to Intensive Care Unit (ICU), mortality during hospitalization, discharge, and patients that remained hospitalized. Results 85 patients were included, median age 53.5 years; 69.4% were male. Most common clinical manifestations at admission were fever (61, 71.8%), cough (29, 34.1%), headache (25, 29.4%) and dyspnea (22, 25.9%). Most common comorbidities were overweight (44/82, 53.6%), obesity (25/82, 30.5%), hypertension (18, 21.2%), and diabetes (17, 20%). 31 of 85 (36.5%) patients were diagnosed with critical disease, whereas 54 of 85 (63.5%) were classified as non-critical. In the 31 critically ill patients, the length of invasive mechanical ventilation was 13 days [range {2–45}]; 5 patients (16.1%) required tracheostomy. The mean of mechanical ventilation prior to tracheostomy was 19.8 days [range {14–25}]. In all patients, the total length of hospitalization was 12.1 days [range {2–52}], 14.8 days [range {3–52}] in ICU patients, and 6.7 days [range {2–30}] in floor unit patients. No readmissions were documented. Global mortality was 4.7% (9.6% in ICU, 1.8% in floor unit). Of the 4 deceased patients, 3 presented comorbidities (75%), while 1 was previously healthy, documenting massive pulmonary embolism as the cause of sudden death. Conclusion This study shows that the clinical characteristics in this initial cohort are not different that described elsewhere. Mortality is low but it is mainly related to prevalent comorbidities in the Mexican population. Disclosures All Authors: No reported disclosures

Socio-demographic and clinical characteristics of heavy and non-heavy smokers among schizophrenia inpatients in a Chinese Han population

2013 ◽  
Vol 231 (1) ◽  
pp. 305-314 ◽  
Author(s):  
Xiang Yang Zhang ◽  
Da Chun Chen ◽  
Yun Long Tan ◽  
Mei Hong Xiu ◽  
Jingyi Cui ◽  
...  
Keyword(s):  
Clinical Characteristics ◽  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population ◽  
Heavy Smokers
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