Table 3 : Characteristics of White Participants Stratified by Smoking Status.


                                              White

Varible Smokers (n=509) Non-Smokers P-value

Age (Mean, SD) 60.28 (9.3) 59.7 (9.2)   0.463
Family history of Lung Cancer (n, %) 95 (18.7%) 35 (15.5%)   0.298
History of COPD* (n,%) 152 (29.9%) 23 (10.9%) <0.0001
BMI (Mean, SD) 26.89 (5.9) 28.89 (7.0) <0.0001

*COPD: Chronic Obstructive Pulmonary Disease including diagnosis of emphysema
and chronic bronchitis.

Pathak et al.Journal of Cancer Therapeutics and Research  2014 3:1DOI : 10.7243/2049-7962-3-1