study designanalytic methodsICDarrhythmiabiasGeneral modalities of analyses that have, been used for ICD studies are reviewed. Published "typical" examples are briefly described. The historical cohort method is exemplified with previously unpublished data from the Seattle Cardiac Arrest Survivor database. ...
In this lesson, discover the different approaches to experimental design such as between-groups, within-groups, single-factor, and factorial, and understand the advantages and disadvantages of each. Related to this QuestionWhat is the key feature of a cross-sectional study? Present...
What are the advantages and disadvantages of following a bioactivity-guided isolation approach? What are the advantages and disadvantages to having a fast versus a slow metabolism? Describe the advantages and disadvantages of using complex patterns for protein design. What are the advantages and disadva...
What are the advantages of a cross-sequential study design? Cross-sequential studies share some of the benefits of cross-sectional and longitudinal studies. It allows researchers to compare multiple groups across time, to test for cohort effects since the study involves multiple groups, and...
bObjective:/b To evaluate the efficacy of blastocyst transfer in comparison with cleavage stage embryo in a similar cohort of women. b Design:/b Retrospe... K George,A Mangalraj,K Muthukumar,... - 《Journal of Human Reproductive Sciences》 被引量: 46发表: 2009年 Impact of day 3 or da...
task. This might be due to the variation in the intellectual ability of an individual. However, this is not the case with AI-based machines. We program the machines to accomplish a specific task. Thus, the accuracy depends on how well we design and program the machines to carry out the ...
A population based nested case-control study design was used. Data were taken from the UK QResearch primary care database consisting of 7?267?673 patients. Cases were adult patients with a first ever record of venous thromboembolism between 1 January 1996 and 1 July 2007. For each case, up...
studydesignanalyticmethodsICDarrhythmiabiasGeneral modalities of analyses that have, been used for ICD studies are reviewed. Published "typical" examples are briefly described. The historical cohort method is exemplified with previously unpublished data from the Seattle Cardiac Arrest Survivor database. The...
A prospective cohort study design was used. Participants were 50045 people in north-eastern Iran aged 40-75 years at baseline. Recruitment took place between January 2004 and June 2008, and participants were followed until May 2011. The median length of follow-up was 4.7 years per participant...
Cohort multiple randomized controlled trialcmRCTBreast cancerPhysical activityObjectives: The Trials within Cohorts (TwiCs) design is an alternative for pragmatic randomized controlled trials (RCTs) and might overcome disadvantages such as difficult recruitment, dropout after randomization to control, and ...