Results 151 to 160 of about 11,139,771 (196)
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2007
Much can be learned about a process by observing changes over time or by comparing two different processes under different conditions. This chapter introduces the major types of observational study designs: the longitudinal or cohort study, the comparative or case-control study, and some of their variants.
Raymond G, Hoffmann, Hyun Ja, Lim
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Much can be learned about a process by observing changes over time or by comparing two different processes under different conditions. This chapter introduces the major types of observational study designs: the longitudinal or cohort study, the comparative or case-control study, and some of their variants.
Raymond G, Hoffmann, Hyun Ja, Lim
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Study Design for Sequencing Studies
2016Once a biochemical method has been devised to sample RNA or DNA of interest, sequencing can be used to identify the sampled molecules with high fidelity and low bias. High-throughput sequencing has therefore become the primary data acquisition method for many genomics studies and is being used more and more to address molecular biology questions.
Loren A, Honaas +2 more
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BMJ, 2012
Researchers investigated whether pioglitazone was associated with an increased risk of bladder cancer in people with type 2 diabetes.1 Use of pioglitazone, an oral antidiabetic agent in the thiazolidinedione class, is controversial.2 The researchers used the general practice research database to extract data from individual patients’ primary care ...
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Researchers investigated whether pioglitazone was associated with an increased risk of bladder cancer in people with type 2 diabetes.1 Use of pioglitazone, an oral antidiabetic agent in the thiazolidinedione class, is controversial.2 The researchers used the general practice research database to extract data from individual patients’ primary care ...
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, 2012 There are four main study designs for an inventory study that are presented in this chapter. Selection of study design depends on which of the main objectives an inventory study is attempting to address, as well as the available ...
Sismanidis, C +7 more
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2006
AbstractThis chapter describes different risk factor study designs. Study designs can be viewed as techniques for organizing observations in ways that can reveal the causes of disease. The risk factor study designs attempt to do this by mimicking the counterfactual, which is the true test of causal effects.
Ezra Susser +3 more
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AbstractThis chapter describes different risk factor study designs. Study designs can be viewed as techniques for organizing observations in ways that can reveal the causes of disease. The risk factor study designs attempt to do this by mimicking the counterfactual, which is the true test of causal effects.
Ezra Susser +3 more
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Annals of Allergy, Asthma & Immunology, 2009
Sami L, Bahna, Steven A, Conrad
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Sami L, Bahna, Steven A, Conrad
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2009
Within epidemiological research there are a number of study designs that can be used to answer the research question. All of these designs have pros and cons, as well as do's and don'ts. This chapter provides a clear overview of the different study designs available, and the pitfalls, as well as strengths and weaknesses.
James R. Borchers, Thomas Best
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Within epidemiological research there are a number of study designs that can be used to answer the research question. All of these designs have pros and cons, as well as do's and don'ts. This chapter provides a clear overview of the different study designs available, and the pitfalls, as well as strengths and weaknesses.
James R. Borchers, Thomas Best
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
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