Results 21 to 30 of about 762,252 (305)

Current concepts of maxillitis pathogenesis and morphogenesis

open access: yesZaporožskij Medicinskij Žurnal, 2018
The aetiology of prenatal sinusitis as well as maxillitis is caused by bacteria, micromyces and viruses, often in combination. Acute infection spreads predominantly from meatus to paranasal sinuses resulting in rhinosinusitis development.
I. M. Andreichyn, V. A. Mikhniov
doaj   +1 more source

Clustered environments and randomized genes: a fundamental distinction between conventional and genetic epidemiology. [PDF]

open access: yes, 2007
BACKGROUND: In conventional epidemiology confounding of the exposure of interest with lifestyle or socioeconomic factors, and reverse causation whereby disease status influences exposure rather than vice versa, may invalidate causal interpretations of ...
Timpson, NJ   +23 more
core   +1 more source

Confounding Factors in the Interpretation of Preclinical Studies [PDF]

open access: yesInternational Journal of Toxicology, 2019
A number of issues may arise during the conduct of a study which can complicate interpretation of in vitro and in vivo datasets. Speakers discussed the implications of differing interpretations and how to avoid complicating factors during study planning and execution. Consideration needs to be given to study design factors including defining objectives,
Laura Dill, Morton   +5 more
openaire   +2 more sources

Confounding factors and seasonal depression

open access: yesInternational Journal of Circumpolar Health, 2003
While reviewing the literature about seasonal affective disorder, we read about the work by Nilsson and collaborators (1999), showing that the rate of self reported depression was four to five times higher in Russians than in Norwegians living on Svalbard.
Schulz P, Curtin F
openaire   +3 more sources

Hypertension and diabetes incidence: confounding factors [PDF]

open access: yesHypertension Research, 2011
Multimorbidity, defined as the coexistence of two or more chronic diseases, is a common phenomenon. Numerous efforts to establish a standardized instrument to assess the level of multimorbidity have failed until now, and indices are primarily characterized by their high heterogeneity.
Arrigo F G, Cicero, Sibel, Ertek
openaire   +2 more sources

Recommendations for using standardised phenotypes in genetic association studies

open access: yesHuman Genomics, 2009
Genetic association studies of complex traits often rely on standardised quantitative phenotypes, such as percentage of predicted forced expiratory volume and body mass index to measure an underlying trait of interest (eg lung function, obesity).
Naylor Melissa G   +2 more
doaj   +1 more source

Geographic bias related to geocoding in epidemiologic studies

open access: yesInternational Journal of Health Geographics, 2005
Background This article describes geographic bias in GIS analyses with unrepresentative data owing to missing geocodes, using as an example a spatial analysis of prostate cancer incidence among whites and African Americans in Virginia, 1990–1999 ...
Siadaty Mir   +4 more
doaj   +1 more source

General characteristics and confounding factors in the entire cohort.

open access: yes, 2022
General characteristics and confounding factors in the entire cohort.
Péter Siró (12646843)   +9 more
core   +1 more source

Confounding factors in algal phosphorus limitation experiments. [PDF]

open access: yesPLoS ONE, 2018
Assessing algal nutrient limitation is critical for understanding the interaction of primary production and nutrient cycling in streams, and nutrient diffusing substrate (NDS) experiments are often used to determine limiting nutrients such as nitrogen (N)
Whitney S Beck, Ed K Hall
doaj   +1 more source

Confounding factors for case exclusion.

open access: yes, 2014
Note: 55 dogs in total were excluded during case filtering because of confounding clinical factors. More than one confounding factor was found in some dogs.Confounding factors for case exclusion.
Connie Chuang (634419)   +7 more
core   +1 more source

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