BACKGROUND: Continued smoking after a @entity5 diagnosis may adversely affect treatment effectiveness, subsequent @entity5 risk, and survival. The prevalence of continued smoking after @entity5 diagnosis is understudied. METHODS: In the multi-regional Cancer Care Outcomes Research and Surveillance cohort ( @entity2 [N = 2456], @entity14 [N = 3063]), the authors examined smoking rates at diagnosis and 5 months after diagnosis and also study factors associated with continued smoking. RESULTS: Overall, 90.2% of @entity1 with @entity2 and 54.8% of @entity1 with @entity14 reported ever smoking. At diagnosis, 38.7% of @entity1 with @entity2 and 13.7% of @entity1 with @entity14 were smoking; whereas, 5 months after diagnosis, 14.2% of @entity1 with @entity2 and 9.0% of @entity1 with @entity14 were smoking. Factors that were associated independently with continued smoking among @entity1 with nonmetastatic @entity2 were coverage by Medicare, other public/unspecified insurance, not receiving chemotherapy, not undergoing surgery, prior @entity65 , lower body mass index, lower emotional support, and higher daily ever-smoking rates (all P < .05). Factors that were associated independently with continued smoking among @entity1 with nonmetastatic @entity14 were male sex, high school education, being uninsured, not undergoing surgery, and higher daily ever-smoking rates (all P < .05). CONCLUSIONS: After diagnosis, a substantial minority of @entity1 with lung and @entity14 continued smoking. @entity1 with @entity2 had higher rates of smoking at diagnosis and after diagnosis; whereas @entity1 with @entity14 were less likely to quit smoking after diagnosis. Factors that were associated with continued smoking differed between lung and @entity14 @entity1 . Future smoking-cessation efforts should examine differences by @entity5 type, particularly when comparing @entity5 for which smoking is a well established risk factor versus @entity5 for which it is not.

A snapshot of smokers after lung and XXXX diagnosis.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['cancers', 'cancer'] @entity2 :: ('MESH:D008175', 'Disease') :: ['lung cancer'] @entity14 :: ('MESH:D015179', 'Disease') :: ['colorectal cancers', 'colorectal cancer'] @entity65 :: ('MESH:D002318', 'Disease') :: ['cardiovascular disease']
@entity14 :: (MESH:D015179,Disease) :: ['colorectal cancer']
