Search results - 302 results
Additional weighting for education affects estimates from a National Health Interview Survey.
educational groups are underrepresented in the sample, estimates may be biased. This study investigated the impact of the use of post-stratification weights that adjust for the population distribution by ...
Defining optimal triage strategies for hrHPV screen positive women- an evaluation of HPV 16/18 genotyping, cytology and p16/Ki-67 cyto-immunochemistry.
61.7%, 68.3% and 85.0% for women with hrHPV+ clinician-taken samples. Respective specificities were 70.5%, 89.1% and 76.7%. The absolute accuracy of the triage tests was similar for women with a hrHPV+ ...
Chemometrics and chromatographic fingerprints to classify plant food supplements according to the content of regulated plants.
using SIMCA and PLS- DA. For each model, misclassification rates for the external test set of maximum one sample could be obtained. The models were applied to five real samples resulting in the ...
Multinomial additive hazard model to assess the disability burden using cross-sectional data.
standard to assess the causes of disability, they are costly and often with restricted sample size. Thus, the use of cross-sectional data under certain assumptions has become a popular alternative. Among the ...
Hepatitis E virus serology and PCR: does the methodology matter?
quality control (EQC) samples. In a period of 39 months (January 2011-April 2014), 70 patients were enrolled. Using different ELISA assays, the prevalence of antibodies varied from 5.7% to 14.3% for HEV IgM ...
High abundance and diversity of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli in faeces and tonsils of pigs at slaughter.
Tryptone Bile X-glucuronide agar supplemented with 1mg/L cefotaxime) were detected in 72 faecal samples (75%; 95% CI: 64-83%) and 45 tonsil samples (47%; 95% CI: 35-59%), in numbers up to 5.5 and 5.6log10 ...
Detection of regulated herbs and plants in plant food supplements and traditional medicines using infrared spectroscopy.
misclassifications for the selected test set. For the other three a success rate of 50% was obtained. Mid- IR combined with SIMCA can therefore be applied as a first step in the screening of unknown samples, before ...
Influence of apixaban on commonly used coagulation assays: results from the Belgian national External Quality Assessment Scheme.
with a large number of reagent/instrument combinations. METHODS: Four lyophilized plasma samples spiked with apixaban (0, 41, 94 and 225 ng/mL) were sent to the 195 Belgian and Luxembourg clinical ...
The use of Stationary Phase Optimized Selectivity Liquid Chromatography for the development of herbal fingerprints to detect targeted plants in plant food supplements.
Medicine national ON plant Plants PRODUCTS public public health Public-health Quality Quality Control SAFETY Sample Samples Type use Abstract: The consumption of plant food supplements is increasing steadily ...
Pertussis diagnosis in Belgium: results of the National Reference Centre for Bordetella anno 2015.
Young adult Abstract: In 2015, the Belgian National Reference Centre for Bordetella analyzed 4110 respiratory samples by qPCR and 4877 serum samples by serology. Whereas about 50% of respiratory samples ...