Table 2. Study participant socio-demographic characteristics and smoking history.

Patient-level characteristics are linked in S1 Table.

Variable	Count	Proportion
Gender
Male	8	40%
Female	12	60%
Age
55–64	5	25%
65–74	13	65%
≥75	2	10%
Race
White	18	90%
Other Race	2	10%
Smoking Status
Current Smoker	7	35%
Former Smoker	13	65%
Smoking Pack Years
30–39	6	30%
40–49	10	50%
≥50	4	20%