Abstract
Background: No simlpe questionnaire has been published, though risk factors of lung cancer were studied for long.
Objective: To explore a questionnaire for people self-evaluating.
Methods: A questionnaire was designed and applied to test its value.
Results: See Table 1. Coefficient of reliability and validity were 0.99 and 0.59. Difference of scores between 94 patients and 252 controls confirmed its differentiating power. Threshold (116) was identified by a survey including 2161 individuals. Then, 7697 volunteers completed a 3-year prospective study, and 16 lung cancer were detected in the risk group with 1257 persons (1.28%), while another 4 in the non-risk cohort (0.06%).
Conclusion: The questionnaire is a useful method for self-evaluation.
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