Healthcare provider profiling: fixing observation period or fixing sample size?

Affiliations

• ¹ Basel Academy for Quality and Research in Medicine, Basel, Switzerland werner.vach@basel-academy.ch.
• ² Department of Environmental Sciences, University of Basel, Basel, Switzerland.
• ³ Research Unit of General Practice, University of Southern Denmark, Odense, Denmark.
• ⁴ Private University in the Principality of Liechtenstein, Triesen, Liechtenstein.
• ⁵ Medical Faculty, University of Basel, Basel, Switzerland.
• ⁶ Crossklinik, Basel, Switzerland.
• ⁷ Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University, Washington, DC, USA.
• ⁸ The Parker Institute, Copenhagen University Hospital, Copenhagen, Denmark.