Table 1.

Attrition table: patient selection

Step/definition	Patients, n (%)
0. Adult patients ≥ 18 years old with eNSCLC extracted from COTA RWD	1200 (100)
1. Patients remaining from Step 0, with an eNSCLC diagnosis in or after 2011	1120 (93.3)
2. Patients remaining from Step 1, excluding those with cancer stage unspecified	1119 (93.3)
3. Patients remaining from Step 2, with biomarker tested on or after the initial diagnosis date, excluding patients with biomarker tested before the initial eNSCLC diagnosis date	1111 (92.6)
4. Patients remaining from Step 3, who had at least one medical activity within 182 days after the initial diagnosis	1103 (91.9)
5. Patients remaining from Step 4, who had evidence of an interaction with the healthcare system within 90 days of diagnosis or a survival of more than 30 days after the diagnosis date	1043 (86.9)
6. Patients remaining from Step 5, who did not enroll in a clinical trial within 182 days of the initial diagnosis	1031 (85.9)
Analytic sample	1031 (85.9)

eNSCLC early non-small cell lung cancer, RWD real-world data