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Randomized Controlled Trial
. 2018 Mar:117:20-26.
doi: 10.1016/j.lungcan.2018.01.003. Epub 2018 Jan 11.

Community-based lung cancer screening with low-dose CT in China: Results of the baseline screening

Wenjia Yang  1 , Fangfei Qian  1 , Jiajun Teng  1 , Huimin Wang  1 , Christian Manegold  2 , Lothar R Pilz  3 , Weiland Voigt  4 , Yanwei Zhang  1 , Jianding Ye  5 , Qunhui Chen  5 , Baohui Han  6 ; Written on behalf of the AME Thoracic Surgery Collaborative Group
Affiliations
Randomized Controlled Trial

Community-based lung cancer screening with low-dose CT in China: Results of the baseline screening

Wenjia Yang et al. Lung Cancer. 2018 Mar.

Abstract

Objectives: To investigate whether low-dose computed tomography (LDCT) screening is capable of enhancing the detection rate of early-stage lung cancer in high-risk population of China with both smoking and non-smoking related factors.

Methods: From 2013-2014, eligible participants with high-risk factors of lung cancer were randomly assigned to a screening group or a control group with questionnaire inquiries. Any non-calcified nodules or masses with longest diameters of ≥4 mm identified on LDCT images were considered as positive.

Results: A total of 6717 eligible participants were randomly enrolled to a study group (3550 to LDCT screening and 3167 to standard care). 3512 participants (98.9%) underwent LDCT screening, and 3145 participants (99.3%) received questionnaire inquiries. A positive screening result was observed in 804 participants (22.9%). In the two-year follow-up period, lung cancer was detected in 51 participants (1.5%) in the LDCT group versus 10 (0.3%) in the control group (stage I: 48 vs 2; stage II to IV or limited stage: 3 vs 8), respectively. Early-stage lung cancer was found in 94.1% vs 20%, respectively.

Conclusions: Compared to usual care, LDCT led to a 74.1% increase in detecting early-stage lung cancer. This study provides insights about the non-smoking related risk factors of lung cancer in the Chinese population.

Keywords: Early-stage detection; Low-dose CT; Lung cancer.

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