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Consortium of Swiss Academic Libraries

Direct to Consumer Advertising: The Case for Greater Consumer Control

Guessous, Idris ; Dash, Chiranjeev

In: Journal of General Internal Medicine, 2015, vol. 30, no. 4, p. 392-394

Université de Fribourg

Corona Immunitas: study protocol of a nationwide program of SARS-CoV-2 seroprevalence and seroepidemiologic studies in Switzerland

West, Erin A. ; Anker, Daniela ; Amati, Rebecca ; Richard, Aude ; Wisniak, Ania ; Butty, Audrey ; Albanese, Emiliano ; Bochud, Murielle ; Chiolero, Arnaud ; Crivelli, Luca ; Cullati, Stéphane ; d'Acremont, Valérie ; Epure, Adina Mihaela ; Fehr, Jan ; Flahault, Antoine ; Fornerod, Luc ; Frank, Irène ; Frei, Anja ; Michel, Gisela ; Gonseth, Semira ; Guessous, Idris ; Imboden, Medea ; Kahlert, Christian R. ; Kaufmann, Laurent ; Kohler, Philipp ; Mösli, Nicolai ; Paris, Daniel ; Probst-Hensch, Nicole ; Rodondi, Nicolas ; Stringhini, Silvia ; Vermes, Thomas ; Vollrath, Fabian ; the Corona Immunitas Research Group

In: International Journal of Public Health, 2020, vol. 65, no. 9, p. 1529–1548

Objectives Seroprevalence studies to assess the spread of SARS-CoV-2 infection in the general population and subgroups are key for evaluating mitigation and vaccination policies and for understanding the spread of the disease both on the national level and for comparison with the international community. Methods Corona Immunitas is a research program of coordinated, population-based,...

Université de Fribourg

Does the single-item self-rated health measure the same thing across different wordings? Construct validity study

Cullati, Stéphane ; Bochatay, Naike ; Rossier, Clémentine ; Guessous, Idris ; Burton‑Jeangros, Claudine ; Courvoisier, Delphine S.

In: Quality of Life Research, 2020, p. -

The self-rated health (SRH) item is frequently used in health surveys but variations of its form (wording, response options) may hinder comparisons between versions over time or across surveys. The objectives were to determine (a) whether three SRH forms are equivalent, (b) the form with the best construct validity and (c) the best coding scheme to maximize equivalence across forms.