Auflistung nach Schlagwort "Bias"
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2010-06-11ZeitschriftenartikelEstimated and measured BMI and self-perceived body image of adolescents in Germany: part 1 - general implications for correcting prevalence estimations of overweight and obesity. Objective: This study examines the degree of divergence between BMI calculated from subjective assessments and BMI calculated from measured height and weight as a function of gender and body image. Methods: In the German ...
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2015-10-17ZeitschriftenartikelFrequency and impact of confounding by indication and healthy vaccinee bias in observational studies assessing influenza vaccine effectiveness: a systematic review Background: Evidence on influenza vaccine effectiveness (VE) is commonly derived from observational studies. However, these studies are prone to confounding by indication and healthy vaccinee bias. We aimed to systematically ...