Sample size importantly limits the usefulness of instrumental variable methods, depending on instrument strength and level of confounding von Boef, Anna G.C, Dekkers, Olaf M, Vandenbroucke, Jan P, le Cessie, Saskia

Volltext

Physician’s Preference-based Instrumental Variable Analysis: Is It Valid and Useful in a Moderate-sized Study? von Boef, Anna G.C, van Paassen, Judith, Arbous, M Sesmu, Middelkoop, Arno, Vandenbroucke, Jan P, le Cessie, Saskia, Dekkers, Olaf M

Volltext

Mendelian randomization studies: a review of the approaches used and the quality of reporting von Boef, Anna G C, Dekkers, Olaf M, le Cessie, Saskia

Volltext

Parasitic infections and immune function: Effect of helminth infections in a malaria endemic area von Boef, Anna G.C, May, Linda, van Bodegom, David, van Lieshout, Lisette, Verweij, Jaco J, Maier, Andrea B, Westendorp, Rudi G.J, Eriksson, Ulrika K

Volltext

Mendelian Randomization Studies in the Elderly von Boef, Anna G. C., le Cessie, Saskia, Dekkers, Olaf M.

Volltext

Response to letter “Study conclude that routinely monitoring of sputum viral load in severe COVID-19 patients may be beneficial for development of infection control guidelines and... von van Wezel, Esther M., Boef, Anna G.C., Van Leer Buter, Coretta

Volltext

Non-specific effects of measles, mumps, and rubella (MMR) vaccination in high income setting: population based cohort study in the Netherlands von Tielemans, Susanne M A J, de Melker, Hester E, Hahné, Susan J M, Boef, Anna G C, van der Klis, Fiona R M, Sanders, Elisabeth A M, van der Sande, Marianne A B, Knol, Mirjam J

Volltext

Viral load dynamics in intubated patients with COVID-19 admitted to the intensive care unit von Boef, Anna G.C., van Wezel, Esther M., Gard, Lilli, Netkova, Kala, Lokate, Mariëtte, van der Voort, Peter H.J., Niesters, Hubert G.M., Van Leer Buter, Coretta

Volltext

Differences by sex in IgG levels following infant and childhood vaccinations: An individual participant data meta-analysis of vaccination studies von Boef, Anna G.C., van der Klis, Fiona R.M., Berbers, Guy A.M., Buisman, Anne-Marie, Sanders, Elisabeth A.M., Kemmeren, Jeanet M., van der Ende, Arie, de Melker, Hester E., Rots, Nynke Y., Knol, Mirjam J.

Volltext

Low C-reactive protein levels in a traditional West-African population living in a malaria endemic area von Eriksson, Ulrika K, van Bodegom, David, May, Linda, Boef, Anna G C, Westendorp, Rudi G J

Volltext

Physician’s Prescribing Preference as an Instrumental Variable: Exploring Assumptions Using Survey Data von Boef, Anna G. C., le Cessie, Saskia, Dekkers, Olaf M., Frey, Peter, Kearney, Patricia M., Kerse, Ngaire, Mallen, Christian D., McCarthy, Vera J. C., Mooijaart, Simon P., Muth, Christiane, Rodondi, Nicolas, Rosemann, Thomas, Russell, Audrey, Schers, Henk, Virgini, Vanessa, de Waal, Margot W. M., Warner, Alex, Gussekloo, Jacobijn, den Elzen, Wendy P. J.

Volltext

Re: "Mendelian randomization and estimation of treatment efficacy for chronic diseases" von Boef, Anna G C, Postmus, Iris, Siegerink, Bob

Volltext

Reporting Instrumental Variable Analyses von Boef, Anna G. C., Dekkers, Olaf M., le Cessie, Saskia, Vandenbroucke, Jan P.

Volltext

Instrumental variable analysis as a complementary analysis in studies of adverse effects: venous thromboembolism and second-generation versus third-generation oral contraceptives von Boef, Anna G. C., Souverein, Patrick C., Vandenbroucke, Jan P., van Hylckama Vlieg, Astrid, de Boer, Anthonius, le Cessie, Saskia, Dekkers, Olaf M.

Volltext

Socioeconomic Status Is Associated With Antibody Levels Against Vaccine Preventable Diseases in the Netherlands von Hoes, Joske, Boef, Anna G C, Knol, Mirjam J, de Melker, Hester E, Mollema, Liesbeth, van der Klis, Fiona R M, Rots, Nynke Y, van Baarle, Debbie

Volltext

Brief Report: Physician's Preference-based Instrumental Variable Analysis: Is It Valid and Useful in a Moderate-sized Study? von Boef, Anna G.C., van Paassen, Judith, Arbous, M. Sesmu, Middelkoop, Arno, Vandenbroucke, Jan P., le Cessie, Saskia, Dekkers, Olaf M.

Volltext