Nevertheless, the number of these laboratory tests has risen sharply in recent years. A study conducted on behalf of the Swiss Medical Board concludes that the majority of these tests are unnecessary and may represent a case of medical overuse. The study can be viewed at https://bmchealthservres.biomedcentral.com/articles/10.1186/s12913-020-05956-2.
The Centre for Health Services Research of the Helsana insurance companies came to similar conclusions in a recently published study: see PDF.