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Country-based modelling of COVID-19 case fatality rate:A multiple regression analysis
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作者 Soodeh Sagheb Ali Gholamrezanezhad +2 位作者 Elizabeth Pavlovic Mohsen Karami Mina Fakhrzadegan 《World Journal of Virology》 2024年第1期84-94,共11页
BACKGROUND The spread of the severe acute respiratory syndrome coronavirus 2 outbreak worldwide has caused concern regarding the mortality rate caused by the infection.The determinants of mortality on a global scale c... BACKGROUND The spread of the severe acute respiratory syndrome coronavirus 2 outbreak worldwide has caused concern regarding the mortality rate caused by the infection.The determinants of mortality on a global scale cannot be fully understood due to lack of information.AIM To identify key factors that may explain the variability in case lethality across countries.METHODS We identified 21 Potential risk factors for coronavirus disease 2019(COVID-19)case fatality rate for all the countries with available data.We examined univariate relationships of each variable with case fatality rate(CFR),and all independent variables to identify candidate variables for our final multiple model.Multiple regression analysis technique was used to assess the strength of relationship.RESULTS The mean of COVID-19 mortality was 1.52±1.72%.There was a statistically significant inverse correlation between health expenditure,and number of computed tomography scanners per 1 million with CFR,and significant direct correlation was found between literacy,and air pollution with CFR.This final model can predict approximately 97%of the changes in CFR.CONCLUSION The current study recommends some new predictors explaining affect mortality rate.Thus,it could help decision-makers develop health policies to fight COVID-19. 展开更多
关键词 COVID-19 SARS-CoV-2 Case fatality rate Predictive model Multiple regression
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术中神经电生理监测在单椎板入路选择性神经后根离断术中的作用 被引量:5
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作者 Xiao B Constatntini S +4 位作者 Browd SR Zhan Q Jiang W Mei R 詹琪佳(编译) 《中国现代神经疾病杂志》 CAS 北大核心 2020年第4期369-369,共1页
目的单椎板入路选择性神经后根离断术(SL-SDR)治疗痉挛性脑瘫完全依赖术中神经电生理监测结果。本研究旨在讨论SL-SDR术中肌电图判读对神经根选择和离断的影响及作用。方法回顾分析2016年5月至2019年3月在上海交通大学附属儿童医院神经... 目的单椎板入路选择性神经后根离断术(SL-SDR)治疗痉挛性脑瘫完全依赖术中神经电生理监测结果。本研究旨在讨论SL-SDR术中肌电图判读对神经根选择和离断的影响及作用。方法回顾分析2016年5月至2019年3月在上海交通大学附属儿童医院神经外科采用改良神经电生理监测离断方案指导下SL-SDR治疗的痉挛性脑瘫患儿的临床资料,重点关注术中肌电图判读及其与术前临床表现的相关性,以及比较采用不同神经电生理监测离断方案解读术中肌电图时的神经后根选择差异。结果共纳入318例患儿,男性231例、女性87例,平均年龄5.9岁,32例为偏瘫、161例为双侧瘫、125例为四肢瘫。每例患儿有2~8组目标肌群(术前肌张力≥2级)。术中神经电生理监测结果显示,探测的21728枚神经小根[(68.3±8.2)枚/例]中6272枚(28.9%)与肛门括约肌相关,15456枚[(48.6±7.6)枚/例]与下肢肌群相关,其中,神经后根11009枚[(34.6±7.4)枚/例]。共有3370枚[(10.6±4.7)枚/例]符合改良神经后根离断方案,其中3061枚50%部分离断、309枚75%部分离断。术前粗大运动功能分级(GMFCS)分级Ⅰ~Ⅴ级的离断率(部分离断的神经后根数/下肢肌群相关神经后根数)分别为15.8%、22.3%、33.4%、41.8%和45.7%。75%部分离断的离断率随术前GMFCS分级的递增而增加,分别为1.5%、4.8%、8.5%、14.1%和15.2%。术后3周,2068组目标肌群肌张力显著降低[(1.7±0.5)级对(2.7±0.6)级]。术前GMFCS分级Ⅰ和Ⅱ级患儿采用传统离断方案约有20%的病例无法识别任何1枚约20%需离断的神经后根,而随着患儿术前GMFCS分级的递增,传统与改良方案离断的符合率逐步提高,分别为39.5%、41.3%、52.2%、54.1%和62.8%。结论由于SL-SDR完全依赖于术中肌电图判读,使得术中神经电生理监测显得至关重要。改良神经电生理监测离断方案指导下的SL-SDR可以安全、有效治疗痉挛性脑瘫。SL-SDR术中肌电图及其与临床表现相关的预后,可以使临床医师更好地理解此类患儿脊髓神经元环路的运作模式。 展开更多
关键词 痉挛性脑瘫 肌张力 附属儿童医院 改良方案 四肢瘫 离断术 上海交通大学 临床医师
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Transition of pediatric to adult care in inflammatory bowel disease: Is it as easy as 1, 2, 3? 被引量:2
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作者 Anita Afzali Ghassan Wahbeh 《World Journal of Gastroenterology》 SCIE CAS 2017年第20期3624-3631,共8页
Inflammatory bowel disease(IBD)is a heterogeneous group of chronic diseases with a rising prevalence in the pediatric population,and up to 25%of IBD patients are diagnosed before 18 years of age.Adolescents with IBD t... Inflammatory bowel disease(IBD)is a heterogeneous group of chronic diseases with a rising prevalence in the pediatric population,and up to 25%of IBD patients are diagnosed before 18 years of age.Adolescents with IBD tend to have more severe and extensive disease and eventually require graduation from pediatric care toadult services.The transition of patients from pediatric to adult gastroenterologists requires careful preparation and coordination,with involvement of all key players to ensure proper collaboration of care and avoid interruption in care.This can be challenging and associated with gaps in delivery of care.The pediatric and adult health paradigms have inherent differences between health care models,as well as health care priorities in IBD.The readiness of the young adult also influences this transition of care,with often times other overlaps in life events,such as school,financial independence and moving away from home.These patients are therefore at higher risk for poorer clinical disease outcomes.The aim of this paper is to review concepts pertinent to transition of care of young adults with IBD to adult care,and provides resources appropriate for an IBD pediatric to adult transition of care model. 展开更多
关键词 Inflammatory bowel disease Adolescents Young adults Transition care Transition to adult care
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Diabetes exacerbates inflammatory bowel disease in mice with dietinduced obesity 被引量:1
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作者 Kendra L Francis Kimberly M Alonge +5 位作者 Maria Cristina Pacheco Shannon J Hu Cody A Krutzsch Gregory J Morton Michael W Schwartz Jarrad M Scarlett 《World Journal of Gastroenterology》 SCIE CAS 2023年第33期4991-5004,共14页
BACKGROUND The increased prevalence of inflammatory bowel disease(IBD)among patients with obesity and type 2 diabetes suggests a causal link between these diseases,potentially involving the effect of hyperglycemia to ... BACKGROUND The increased prevalence of inflammatory bowel disease(IBD)among patients with obesity and type 2 diabetes suggests a causal link between these diseases,potentially involving the effect of hyperglycemia to disrupt intestinal barrier integrity.AIM To investigate whether the deleterious impact of diabetes on the intestinal barrier is associated with increased IBD severity in a murine model of colitis in mice with and without diet-induced obesity.METHODS Mice were fed chow or a high-fat diet and subsequently received streptozotocin to induce diabetic-range hyperglycemia.Six weeks later,dextran sodium sulfate was given to induce colitis.In select experiments,a subset of diabetic mice was treated with the antidiabetic drug dapagliflozin prior to colitis onset.Endpoints included both clinical and histological measures of colitis activity as well as histochemical markers of colonic epithelial barrier integrity.RESULTS In mice given a high-fat diet,but not chow-fed animals,diabetes was associated with significantly increased clinical colitis activity and histopathologic markers of disease severity.Diabetes was also associated with a decrease in key components that regulate colonic epithelial barrier integrity(colonic mucin layer content and epithelial tight junction proteins)in diet-induced obese mice.Each of these effects of diabetes in diet-induced obese mice was ameliorated by restoring normoglycemia.CONCLUSION In obese mice,diabetes worsened clinical and pathologic outcomes of colitis via mechanisms that are reversible with treatment of hyperglycemia.Hyperglycemia-induced intestinal barrier dysfunction offers a plausible mechanism linking diabetes to increased colitis severity.These findings suggest that effective diabetes management may decrease the clinical severity of IBD. 展开更多
关键词 Inflammatory bowel disease Type 2 diabetes OBESITY Intestinal barrier HYPERGLYCEMIA Colitis in mice Tight junction proteins
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The potential of a year-round school calendar for maintaining children’s weight status and fitness:Preliminary outcomes from a natural experiment
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作者 r.glenn weaver ethan hunt +7 位作者 aaron rafferty michael w.beets keith brazendale gabrielle tumer-mcgrievy russell r.pate alberto maydeu-olivares brian saelens shawn youngstedt 《Journal of Sport and Health Science》 SCIE 2020年第1期18-27,102,共11页
Purpose: To evaluate the potential of a year-round school calendar (180-day school year distributed across 12 months) as an intervention comparedto a traditional school calendar (180-day school year distributed across... Purpose: To evaluate the potential of a year-round school calendar (180-day school year distributed across 12 months) as an intervention comparedto a traditional school calendar (180-day school year distributed across 9 months) for mitigating children's weight gain and fitness loss viaa natural experiment.Methods. Height, weight, and cardiorespiratory fitness (CRF) (i.e., Fitnessgram Progressive Aerobic Cardiovascular Endurance Run) were measured inchildren (5—12 years old) in 3 schools (2 traditional, 1 year-round, n = 990 students, age = 8.6 土 2.4 years, 53.1% male, 68.9% African American) from1 school district. Structure (represented by the presence of a school day) was the independent variable. Changes in body mass index (BMI), age- andsex-specific BMI z-scores (zBMI), BMI percentile, percent of overweight or obese children, and CRF (Progressive Aerobic Cardiovascular EnduranceRun laps completed) were assessed for summer 2017 (May—August 2017), school year 2017/2018 (August 2017—May 2018), and summer 2018(May—August 2018). Primary analyses examined the overall change in weight and CRF from summer 2017 until summer 2018 via multilevel mixedeffects regression, with group (traditional vs. year-round calendar), time, and a group-by-time interaction as the independent variables. Secondaryregression analyses estimated differences in change within and between groups during each time period, separately.Results. Year-round students gained less BMI (difference in A = —0.44, 95% confidence interval (CI): —0.67 to —0.03) and less CRF (differencein △ = — 1.92, 95%CI: —3.56 to —0.28) than students attending a traditional school overall. Compared with traditional students, during both sum・mers, year-round students gained less BMI (summer 2017 difference in A = —0.15, 95%CI: —0.21 to —0.08;summer 2018 difference in△ = —0.16, 95%CI: —0.24 to —0.07) and zBMI (summer 2017 difference in A = —0.032, 95%CI: —0.050 to —0.010;summer 2018 difference in△ = —0.033, 95%CI: —0.056 to —0.009), and increased CRF (summer 2017 difference in A = 0.40, 95%CI: 0.02—0.85;summer 2018 differencein A = 0.23, 95%CI: —0.25 to 0.74). However, the opposite was observed for the school year, with traditional students gaining less BMI andzBMI and increasing CRF compared with year-round students (difference in BMI A = 0.05, 95%CI: 0.03—0.07;difference in zBMI A = 0.012,95%CI: 0.005—0.019;difference in Progressive Aerobic Cardiovascular Endurance Run laps A = —0.43, 95%CI: —0.58 to —0.28).Conclusion'. The year-round school calendar had a small beneficial impact on children's weight status but not CRF. It is unclear if this benefit tochildren's weight would be maintained because gains made in the summer were largely erased during the school year. Trajectories of weight andCRF gain/loss were consistent with the structured days hypothesis. 展开更多
关键词 Children INTERVENTION Obesity OVERWEIGHT Policy School calendar
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Joy of gardening: a hospital-based cooking and gardening program
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作者 Grace Kim Kirsten Thompson 《World Journal of Pediatrics》 SCIE CAS CSCD 2020年第5期533-536,共4页
Background Nutrition interventions aid in implementing healthy eating.Garden-enhanced nutrition intervention programs have been conducted in schools.We sought to assess feasibility of a hospital-based cooking and gard... Background Nutrition interventions aid in implementing healthy eating.Garden-enhanced nutrition intervention programs have been conducted in schools.We sought to assess feasibility of a hospital-based cooking and gardening program.Methods The cohort study implemented a 3-week integrated cooking and gardening program in the United States(Seattle,WA).We recruited participants with ages 8-15 years from ambulatory clinics.We conducted three 3-week series hospitalbased cooking and gardening program.Children and parents were given pre-and post-program(1 year)surveys.The surveys assessed child participation in food preparation and gardening,strengths and weaknesses of the program,and identified parents'opinions towards sustaining healthy behaviors.Results Eighteen children participated in the hospital-based cooking and gardening program.At l-year follow-up,78%of participants were gardening at home and 100%of participants were cooking at home.Conclusions Novel approaches to combat obesity are needed.A hospital-based cooking and gardening program is a novel intervention to consider for nutrition education. 展开更多
关键词 Child nutrition Community health education Health education Healthy lifestyle Healthy nutrition
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Impact of hospital volume on outcomes of percutaneous ASD/PFO closure in pediatric patients
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作者 Parth Bhatt Achint Patel +4 位作者 Varun Kumar Anusha Lekshminarayanan Viranchi Patel Srilatha Alapati Zeenia Cyrus Billimoria 《World Journal of Pediatrics》 SCIE CAS CSCD 2018年第4期364-372,共9页
Background We investigated the effect of hospital volume on percutaneous closure of atrial septal defect/patent foramen ovale (ASD) among pediatric patients. Methods We identified patients undergoing percutaneous clos... Background We investigated the effect of hospital volume on percutaneous closure of atrial septal defect/patent foramen ovale (ASD) among pediatric patients. Methods We identified patients undergoing percutaneous closure of ASD with device using International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) procedure code 35.52 from the National Inpatient Sample, years 2002–2011. Patients with age ≤ 18 years and primary diagnosis code 745.5 for ASD were included. Hospital volume was calculated using unique identification numbers and divided into tertiles for analysis. Multivariate regression analysis was performed to determine independent predictors of procedure-related complications which were coded using specific codes released by Healthcare Cost and Utilization Project. Results 6162 percutaneous ASD closure procedures were analyzed. There was no mortality associated with percutaneous ASD closure. Cardiac complications (9.5%) were most common. On multivariate analysis, age increment of 3 years decreased the odds of developing complications (OR 0.83, 95% CI 0.79–0.87,P < 0.001). Odds of developing complications in the 2nd (OR 0.74, 95% CI 0.62–0.89,P = 0.007) and 3rd tertiles (OR 0.34, 95% CI 0.27–0.42,P < 0.001) were lower as compared to the 1st tertile of hospital volume. Conclusion Increasing annual hospital volume is an independent predictor of lower complication rates in percutaneous ASD closure cases with no associated mortality in pediatric patients. 展开更多
关键词 ATRIAL SEPTAL defect CARDIAC CATHETERIZATION Children
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长期鞘内输注吗啡后在猪脊髓的分布
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作者 Sean H. Flack, MBChB, FCA Christine M. Anderson, MD +3 位作者 Christopher Bernards, MD 黎平(译) 彭丽桦(译) 闵苏(校) 《麻醉与镇痛》 2013年第5期49-53,共5页
背景鞘内持续药物输注为脊髓靶控长期给药提供了新的方法,但其疗效并不确切。采用急性猪模型的前期研究已表明:由于脑脊液和脊髓中药物分布非常有限,持续鞘内给药疗效不稳定。本研究目的是观察急性给药时有限的药物分布是否在慢性模... 背景鞘内持续药物输注为脊髓靶控长期给药提供了新的方法,但其疗效并不确切。采用急性猪模型的前期研究已表明:由于脑脊液和脊髓中药物分布非常有限,持续鞘内给药疗效不稳定。本研究目的是观察急性给药时有限的药物分布是否在慢性模型中仍然存在。方法4头圈养猪,植入鞘内输注泵,泵注吗啡20μl/h(1mg/ml)。由于程序错误,另有1头猪泵注吗啡剂量为2μl/h。持续泵注14天,给药期间动物活动不受限。给药结束时,麻醉并处死动物采集脊髓,制备1cm厚度切片,测定吗啡含量。结果与前期急性动物模型研究结果相似,吗啡药物分布相当局限。随着与导管尖端距离增加,吗啡含量呈指数级减少,远离5—10cm,即减少5~10倍。结论活动不受限的猪,长期鞘内输注吗啡后其分布局限,且远离输注点吗啡含量呈梯度下降。故导管尖端的位置非常重要,尤其在输注等比重液体时。因为药物分布受限可导致局部药物浓度过高,长期鞘内输注阿片类药可并发导管尖端局部炎症。 展开更多
关键词 鞘内给药 吗啡含量 药物输注 猪模型 脊髓 药物分布 急性给药 持续泵注
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美国临床检验技师培养
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作者 许敏 《中华临床实验室管理电子杂志》 2016年第2期113-115,共3页
美国临床检验技师在临床检验科承担重要责任。检验技师的培养是保证临床检验质量的关键。临床检验技师需要具有医学检验科学学士学位,并在实际工作中积累了丰富的经验。随着检验技术的飞速发展,检验项目的增多和检验复杂程度的增高,对... 美国临床检验技师在临床检验科承担重要责任。检验技师的培养是保证临床检验质量的关键。临床检验技师需要具有医学检验科学学士学位,并在实际工作中积累了丰富的经验。随着检验技术的飞速发展,检验项目的增多和检验复杂程度的增高,对检验技师的需求及其知识和技术的要求也不断增加。 展开更多
关键词 检验技师 临床检验科 培养途径
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