Zoekresultaten - 79 results

Collaborative study of the analysis of chlortetracycline hydrochloride by liquid chromatography on polystyrene-divinylbenzene packing materials

204, p.199- 204 (1992) Keywords: Absence an analysis Analysis of Variance article AS Belgium bias chemistry Chlortetracycline chromatography Chromatography,Liquid im interaction IS journal Laboratories ...

The impact of individual-level heterogeneity on estimated infectious disease burden: a simulation study.

factors Bias (Epidemiology) Communicable Diseases Computer Simulation Cost of Illness Disabled Persons Disease Progression Humans Models, Biological probability Quality-Adjusted Life Years risk Abstract: ...

Immediate referral to colposcopy versus cytological surveillance for minor cervical cytological abnormalities in the absence of HPV test.

surveillance, may have led to study design-derived bias; we therefore considered the evidence to be of low quality.When we excluded the exit examination, the detection rate of high-grade lesions at the 18-month ...

Optimising the case-crossover design for use in shared exposure settings.

Publication Type: Peer reviewed scientific article Authors: Toon Braeye; N Hens Source: Epidemiol Infect, Volume 148 (2020) Keywords: bias Case-Control Studies Confounding Factors, Epidemiologic ...

Post-migration acquisition of HIV: Estimates from four European countries, 2007 to 2016.

acquisition of migrants diagnosed in four European countries using surveillance data.MethodsUsing CD4 + T-cell count trajectories modelled to account for seroconversion bias, we estimated infection year of ...

Insights into the association of ACEIs/ARBs use and COVID-19 prognosis: a multistate modelling study of nationwide hospital surveillance data from Belgium.

the potential exacerbation of COVID-19 severity and fatality. Previous studies addressing this question have used standard methods that may lead to biased estimates when analysing hospital data because ...

Unit Response and Costs in Web Versus Face-To-Face Data Collection: Comparison of Two Cross-sectional Health Surveys.

response than traditional modes, and this may increase bias in the measured indicators. OBJECTIVE: This research assesses the unit response and costs of a web study versus face-to-face (F2F) study. METHODS: ...

Estimation of country-level effects in cross-national survey research using multilevel modelling: The role of statistical power (Preprint)

power, relative parameter bias, relative standard error bias, and convergence rates. We pay special attention to statistical power — a key criteria that has been largely neglected in past research. The ...

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