Figure 2.
Associations of smoking status with radiographic pulmonary vascular measures. Black diamonds, total blood volume (TBV); blue circles, blood volume of smaller peripheral vessels (defined as cross-sectional area <5 mm2 [BV5]); red diamonds, small vessel fraction (BV5/TBV). Results of linear regression models adjusting for age, sex, height, weight, personal educational attainment, occupation category, quartiles of census tract median neighborhood income, and Framingham Heart Study cohort (Offspring vs. Third Generation)