Opinion Primary Colour Helen Salisbury: Opportunity costs and the time needed to treat BMJ 2023; 380 doi: https://doi.org/10.1136/bmj.p168 (Published 24 January 2023) Cite this as: BMJ 2023;380:p168 Article Related content Metrics Responses Peer review Related articles Analysis Guidelines should consider clinicians’ time needed to treat Published: 03 January 2023; BMJ 380 doi:10.1136/bmj-2022-072953 Editor's Choice Innovative solutions can help repair the NHS Published: 26 January 2023; BMJ 380 doi:10.1136/bmj.p187 See more A blood test for multiple cancers: game changer or overhyped? BMJ September 21, 2022, 378 o2279; DOI: https://doi.org/10.1136/bmj.o2279 The historical rise of “overdiagnosis”—an essay by Scott Podolsky BMJ July 22, 2022, 378 o1679; DOI: https://doi.org/10.1136/bmj.o1679 Guidance on cow’s milk allergy may be fuelling overdiagnosis in infants, study finds BMJ December 08, 2021, 375 n3037; DOI: https://doi.org/10.1136/bmj.n3037 Rammya Mathew: The true cost of unnecessary investigations BMJ December 07, 2021, 375 n2996; DOI: https://doi.org/10.1136/bmj.n2996 The curse of the priors when interpreting scans BMJ June 09, 2021, 373 n1438; DOI: https://doi.org/10.1136/bmj.n1438