Core concepts in pharmacoepidemiology: Violations of the positivity assumption in the causal analysis of observational data: Consequences and statistical approaches
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DOI: 10.1002/pds.5338
Abstract: In the causal analysis of observational data, the positivity assumption requires that all treatments of interest be observed in every patient subgroup. Violations of this assumption are indicated by nonoverlap in the data in the… read more here.
Keywords: assumption; analysis observational; positivity; causal analysis ... See more keywords
Sensory analysis and observational study in an experimental restaurant: Pilot study
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Gastronomy and Food Science"
DOI: 10.1016/j.ijgfs.2018.05.004
Abstract: Abstract Food businesses test their products to predict their success in the future market. Intrusive methods, such as self-reported evaluations in laboratory settings, are used to assess the appreciation for those products. However, the data… read more here.
Keywords: sensory analysis; observational study; analysis observational; study ... See more keywords
Comparative statistical analysis in observational epidemiological studies.
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DOI: 10.1016/j.medin.2017.02.005
Abstract: We wish to congratulate Socias et al.1 for their work on the prognostic impact of ST segment elevation acute coronary syndrome (STE-ACS) in Mallorca, Spain. Subpopulations with STE-ACS from two observational registries were compared in… read more here.
Keywords: analysis observational; analysis; comparative statistical; statistical analysis ... See more keywords
An adaptive Mantel-Haenszel test for sensitivity analysis in observational studies.
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DOI: 10.1111/biom.12591
Abstract: In a sensitivity analysis in an observational study with a binary outcome, is it better to use all of the data or to focus on subgroups that are expected to experience the largest treatment effects?… read more here.
Keywords: analysis observational; analysis; mantel haenszel; sensitivity analysis ... See more keywords
Analysis of observational parameters and stability in extended teleparallel gravity
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DOI: 10.1142/s0219887820501583
Abstract: In this paper, we have investigated the stability of General Relativistic Hydrodynamics (GRHD) model in a Friedmann–Robertson–Walker space-time with the volumetric power law in teleparallel gravity... read more here.
Keywords: analysis observational; teleparallel gravity; observational parameters; parameters stability ... See more keywords
The association between periodontal disease and the risk of myocardial infarction: a pooled analysis of observational studies
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DOI: 10.1186/s12872-017-0480-y
Abstract: BackgroundSeveral meta-analyses have indicated that periodontal disease (PD) are related to cardiovascular diseases (CVDs). However, the association between PD and myocardial infarction (MI) remains controversial. Here we aimed to assess the association between PD and… read more here.
Keywords: periodontal disease; risk; analysis observational; myocardial infarction ... See more keywords