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Background  A retrospective study involving 502 lung cancer patients who had received pulmonary resection from 2009–2013 was conducted in order to compare the clinical characteristics of patients whose diagnosis was detected by low‐dose computed tomography ( LDCT ) and computed radiography ( CR ).Methods  Two groups were established, based on the method of detection: the  LDCT  group included 172 lung cancer patients; the  CR  group included 330 lung cancer patients. The evolution of proportions of patients in urban and rural regions was also analyzed, according to detection method.Results  The percentage of patients with stage  I  was higher in the  LDCT  group than in the  CR  group (77.3%, 133/172 vs. 53.6%, 177/330). The incidence of postoperative complications within 30 days was significantly lower in the  LDCT  than in  CR  group (25.0% vs. 33.6%). The proportion of patients detected by  LDCT  or  CR  in urban regions was constantly higher than in rural regions (with an increase of 13.0% vs. 5.9%); the proportion of  LDCT ‐detected patients in urban regions was constantly higher than in rural regions (with an increase of 8.7% vs. 5.9%).    Conclusions   LDCT  contributes to a higher proportion of early lung cancer diagnoses and a lower incidence of postoperative complications in surgical patients. The proportions of patients detected early and by  LDCT  have both increased steadily during the last five years. These two trends are more pronounced in urban compared with rural patients.

thoracic cancer

Status and perspectives of detection by low‐dose computed tomography or computed radiography in surgical patients with lung cancer, based on a five‐year study