A brief measure of Smokers' knowledge of lung cancer screening with low-dose computed tomography.

ABSTRACT: We describe the development and psychometric properties of a new, brief measure of smokers' knowledge of lung cancer screening with low-dose computed tomography (LDCT). Content experts identified key facts smokers should know in making an informed decision about lung cancer screening. Sample questions were drafted and iteratively refined based on feedback from content experts and cognitive testing with ten smokers. The resulting 16-item knowledge measure was completed by 108 heavy smokers in Houston, Texas, recruited from 12/2014 to 09/2015. Item difficulty, item discrimination, internal consistency and test-retest reliability were assessed. Group differences based upon education levels and smoking history were explored. Several items were dropped due to ceiling effects or overlapping cons

SUBMITTER: Lowenstein LM 

PROVIDER: S-EPMC4976139 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature