Figure 2.

Cross-sectional analysis of protein levels across the strata of smoking status and TNM stage, among 986 lung cancer patients recruited from central and eastern Europe. (A) Survey-weighted linear regression model with adjustment for age at diagnosis, sex, education (elementary, high school, university and above), alcohol intake (never, ever), histology (adenocarcinoma and squamous cell carcinoma), and stage (continuous) and weighted for the original smoking prevalence. (B) Survey-weighted linear regression model with adjustment for age at diagnosis, sex, education (elementary, high school, university and above), smoking status (ever and never), alcohol intake (never, ever), and histology (adenocarcinoma and squamous cell carcinoma) and weighted for the original smoking prevalence. TNM stage was treated as continuous variable, and values from 1 to 5 represents stage IA, IB, IIA, IIB, and IIIA. ENT significant: ENT statistical significance. Nominally significant: P<0.05. ENT, effective-number-of-tests.