Search results - 153 results

Large-scale cross-sectional serological survey of Schmallenberg virus in Belgian cattle at the end of the first vector season.

conclusion that the Schmallenberg virus was widespread in Belgium during winter 2011. Seroprevalence was shown to be statistically associated to the animal’s age (P < 0.0001): with 64.9% (95% CI: ...

Contribution of respiratory pathogens to influenza-like illness consultations

statistically modelled. Virological count data were first smoothed using modulation models for seasonal time series. Second, Poisson regression was used regressing ILI consultation counts on the smoothed time ...

Evaluation of four enzyme-linked immunosorbent assays for the serologic survey of avian influenza in wild bird species.

tests for validation purposes. Cohen’s kappa statistics and Spearman correlation coefficients were calculated for each combination of two tests and for each bird species. Test agreement for mallard sera ...

Incidence, patient characteristics and treatment initiated for GP-diagnosed depression in general practice: results of a 1-year nationwide surveillance study.

during 2008, (ii) associations between patient characteristics, appraised severity and initiated treatment, (iii) GP s’ usual care compared to diagnostic criteria from Diagnostic and Statistical Manual of ...

Characteristics of serology-based vaccine potency models for foot-and-mouth disease virus.

Neutralization Tests Predictive Value of Tests Reproducibility of Results Roc Curve Statistics as Topic Viral Vaccines Abstract: BACKGROUND: Foot-and-mouth disease (FMD) vaccine potency testing involves hundreds ...

Concordance between European and US case definitions of healthcare-associated infections

a three-month period (March 1st-May 31st, 2010). Concordance between case definitions was estimated with Cohen [RIGHT SINGLE QUOTATION MARK]s kappa statistic (kappa). RESULTS: Differences in HAI definitions were ...

Modelling aluminium leaching into food from different foodware materials with multi-level factorial design of experiments.

Concentration Limit of Detection Models, Chemical Osmolar Concentration Reproducibility of Results Sodium Chloride Solubility Spectrophotometry, Atomic Statistics as Topic Time Factors Abstract: To estimate the ...

Simulation of between repeat variability in real time PCR reactions.

Algorithms Analysis of Variance Computer Simulation Models, Statistical Real-Time Polymerase Chain Reaction Reproducibility of Results Sensitivity and Specificity Abstract: While many decisions rely on real ...

Quantitative characterization of agglomerates and aggregates of pyrogenic and precipitated amorphous silica nanomaterials by transmission electron microscopy.

particles. This reduces operator-induced bias and assures a statistically relevant number of measurements, avoiding the tedious repetitive task of manual measurements. Access to multiple parameters further ...

Does the association between smoking and mortality differ by socioeconomic status?

education was not statistically significant. For women, the hazard ratios were not significant for any educational category except for heavy smokers with intermediate levels of education. Also here the ...

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