Fig. 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.