Table 1.

Baseline characteristics in the development and evaluation cohorts.

Characteristic	Development cohort	Evaluation cohort
Age (years)
Average	65.1	64.6
Range	40–71	51–81
Sex
Male	39	50
Female	6	1
Stage
T1		18
T2		22
T3		9
T4		2
N/A	45
Smoking history
Current/former smoker		46
Never smoker		5
N/A	45
TPS
$<1\%$	2	15
1–49%	10	18
$>=50\%$	33	18