Figure 2. Demographic information of the study cohort.
(a) Baseline information where the smokers had more % males and shorter illness or hospital days than the nonsmokers.
(b) Smoking history by pack-year for 48 patients. Eight other patients with smoking history had no specific information so were not displayed here but all were “current smokers”; 40 (71.4%) out of the 56 patients with smoking history were “current smokers”.
(c) Smoking history by year of the 48 patients with smoking history. Averages are indicated on top.