Search results - 36 results

A statistical model for predicting the inter-annual variability of birch pollen abundance in Northern and North-Eastern Europe.

of daily-mean pollen concentrations) over large regions and demonstrates its performance for birch in Northern and North-Eastern Europe. A statistical model is constructed using meteorological, ...

High relative humidity pre-harvest reduces post-harvest proliferation of Salmonella in tomatoes.

classical statistical models with higher order interactions. We assessed the effect of harvest time by explicitly modeling the climatic conditions at harvest time and by performing confirmatory laboratory ...

Does air pollution trigger suicide? A case-crossover analysis of suicide deaths over the life span.

associations with PM10, with statistically significant associations observed only among 5-14 year old children (lag 0-6: OR = 1.45; 95% CI: 1.03-2.04) and ≥85 years old (e.g. lag 0-4: OR = 1.17; 95% CI: ...

Demystifying EQA statistics and reports.

To calculate these scores, EQA providers need to have an assigned value and standard deviation for the sample. Both assigned values and standard deviations can be derived chemically or statistically ...

Towards the development of innovative multi-mycotoxin reference materials as promising metrological tool for emerging and regulated mycotoxin analyses.

matter) and significant changes in ergosterol contents (≥±10 %) did not occur. Using the mycotoxin contents in wheat flour stored at-80 °C as reference values, statistically significant decreases were ...

The added value of food frequency questionnaire (FFQ) information to estimate the usual food intake based on repeated 24-hour recalls

recall episodically consumed foods FFQ food consumption survey food frequnecy questionnaire never-consumers Spade statistical modeling methods usual intake Abstract: Background Statistical methods to model ...

Validity and Reproducibility of a Food Frequency Questionnaire for Dietary Factors Related to Colorectal Cancer

data for the FFQ, of whom 156 also participated in the validity assessment. Mean differences in the intake of foods and nutrients between FFQ1 and FFQ2 were, overall, small and statistically ...

DLL4 expression is a prognostic marker and may predict gemcitabine benefit in resected pancreatic cancer.

test for adjuvant gemcitabine therapy was statistically significant (P<0.001). The validating cohort recapitulated the findings of the training cohort. CONCLUSIONS: Low DLL4 abundance in tumour cells ...

ANOVA model for network meta-analysis of diagnostic test accuracy data.

framework and uses the data more efficiently. Nonetheless, handling the inherent correlation between sensitivity and specificity continues to be a statistical challenge. We developed an arm-based hierarchical ...

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