Abstract: Objective The objectives of this study were to analyze the results of lung cancer screening from 9265 urban residents in Urumqi from year 2014 to 2016,and to evaluate the significance of early diagnosis and treatment of cancer for the lung cancer prevention.Methods A total of 31,177 people with high risk of lung cancer were assessed by cancer risk questionnaire surveyed from 40 to 69 years old residents in Urumqi.High-risk groups were assigned to low-dose spiral CT scan in Affiliated Tumor Hospital of Xinjiang Medical University.Results 9,265 people were scanned with low dose spiral CT and overall completion rate was 29.7%.There had 11.9% detection rate in 1,005 people who were scanned positive pulmonary nodules.The detection rate was 31.9% for 2,955 people who were scanned solid nodules(＜5 mm)and 2.5% for 236 people who had the non-solid nodules(＜8 mm).After screening,14 patients were diagnosed by pathology and the detection rate was 0.2%.The emphysema,pulmonary cysts,pulmonary bullae and other related lung disease were detected in 4,095 people and the detection rate was 44.2%.Conclusion The lung health status of Urumqi residents was found by a wide range of lung cancer screening,and the awareness of lung cancer prevention and control was greatly improved.It provided the basis for the establishment of effective prevention and treatment system,which was helpful to improve the early diagnosis and treatment rate of lung cancer.

Key words: Lung cancer, Cancer screening, Low dose spiral CT, Early detection and treatment