Screening for cancer with computed tomography: Screening in private sector has knock on effects in public sector in two tier health systems

doi:10.1136/bmj.326.7404.1457-c

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Andrew C Mason (andrew.mason@fraserhealth.ca), consultant radiologist

Ridge Meadows Hospital, Maple Ridge, BC, Canada V2X 7G5

EDITOR—Swensen in his editorial discusses the effect of false positive diagnoses and excessive costs of screening.1 He describes 700 ancillary findings in a screening study of computed tomography of the body, in which most of these ancillary findings were falsely positive and whose investigation adversely affected quality of life and resulted …