Table 1.

Clinicopathological information of the lung adenocarcinoma PROSPECT set used for STAT3 mRNA analysis

Covariate	Covariate categories	Frequency (percentage)
Race	African American	8 (5.3%)
	Asian	6 (4.0%)
	Hispanic	5 (3.3%)
	Caucasian	131 (87.3%)
Tobacco history	No	19 (12.7%)
	Yes	131 (87.3%)
Smoking status	Never	19 (12.7%)
	Former	67 (44.7%)
	Current	64 (42.6%)
Gender	Female	73 (48.7%)
	Male	77 (51.3%)
Stage	I	90 (60.0%)
	II	24 (16.0%)
	III	35 (23.3%)
	IV	1 (0.7%)
KRAS	Wild type	111 (74.0%)
	Mutant	39 (26.0%)
Recurrence	No	89 (59.3%)
	Yes	61 (40.7%)