TABLE 1

Eligibility criteria for early detection of lung cancer by low dose computed tomography, according to guidelines issued in 2012–2013 by various organisations [5]

Guidelines by organisationDateAge yearsSmoking history pack-yearsSmoking cessation yearsCategory/level
NCCNJan 201555–74≥30<151
≥50≥20 (and one additional risk factor#)2A
ALAApr 201255–74≥30<15NA
Collaborative work of ACCP/ASCO/NCCNMay 201255–74≥30<152B
AATSJune 201255–79≥30Any active or former smoker1
50–79≥20 and added risk ≥5% of developing lung cancer within 5 years2
AnyAny and ≥4 years remission after bronchogenic carcinoma3
ACSJan 201355–74≥30<15NA
ACCPMay 201355–74≥30<152B
USPSTFJuly 201355–79≥30<15B
  • NCCN: National Comprehensive Cancer Network; ALA: American Lung Association; ACCP: American College of Chest Physicians; ASCO: American Society of Clinical Oncology; AATS: American Association for Thoracic Surgery; ACS: American Cancer Society; USPSTF: US Preventive Services Task Force; NA: not available. Levels of evidence: category 1: based upon high level evidence, there is uniform consensus that the intervention is appropriate; category 2A: based upon lower level evidence, there is uniform consensus that the intervention is appropriate; category 2B: based upon lower level evidence, there is consensus that the intervention is appropriate; category 3: based upon any level of evidence, there is major disagreement that the intervention is appropriate. #: radon exposure, occupational exposure (silica, cadmium, asbestos, arsenic, beryllium, chromium, diesel fumes and nickel), cancer history (survivors of lung cancer, lymphomas, cancers of the head and neck, or smoking-related cancers), family history of lung cancer, disease history (chronic obstructive pulmonary disease (COPD) or pulmonary fibrosis; : such as COPD with forced expiratory volume in 1 s of 70% or less than predicted, environmental or occupational exposures, any prior cancer or thoracic radiation, genetic or family history.