Table 2:

Stratification by various clinical variables combined with mutation information provides further insights into the outcomes of patients

Clinical variable	Genomic variable	Number of cases	Median OS, years
Tobacco Use = Ever	–	806	2.83
Tobacco Use = Never	–	133	6.21
Tobacco Use = Ever	EGFR mutated	47	14.19
Tobacco Use = Ever	EGFR wild type	759	2.73
Tobacco Use = Never	EGFR mutated	57	8.73
Tobacco Use = Never	EGFR wild type	76	3.44
Stage = I	–	182	5.57
Stage = II	–	73	2.47
Stage = III	–	179	2.83
Stage = IV	–	343	1.07
Stage = I or II	EGFR mutated	30	Not reached
Stage = I or II	EGFR wild type	260	6.01
Stage = III or IV	EGFR mutated	73	2.20
Stage = III or IV	EGFR wild type	452	1.24

Note that the numbers do not always add up to the total number of lung cancer cases, because some clinical variables were missing or unknown.