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A fifth of lung cancers detected by low dose CT screening are likely to be indolent, study says

BMJ 2013; 347 doi: (Published 11 December 2013) Cite this as: BMJ 2013;347:f7456
  1. Michael McCarthy
  1. 1Seattle

More than 18% of lung cancers detected by low dose computer tomography screening are likely to be indolent and may be cases of overdiagnosis, concludes an analysis of data from the US National Lung Screening Trial (NLST).1

In that trial 53 452 smokers and former smokers at high risk of lung cancer were randomly assigned to be screened annually for three years either with low dose computed tomography or single view posterior-anterior chest radiography then followed for an additional five years.

The study’s results, published in the …

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