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. 2021 Apr 12;15:21. doi: 10.1186/s40246-021-00320-9

Table 1.

Overview of patient and tumor characteristics in the present study

Characteristics Tissues (1000 cases)
n (%)
Blood (500 cases)
n (%)
Sex
 Male 578 (57.8) 308 (61.6)
 Female 422 (42.2) 192 (38.4))
Age
 >60 392 (39.2) 164 (32.8)
 ≤60 602 (60.2) 334 (66.8)
 Unknown 6 (0.6) 2 (0.4)
Smoking
 Non-smoking 945 (94.5) 477 (95.4)
 Occasionally 11 (1.1) 3 (0.6)
 Often 44 (4.4) 20 (4)
Tumor type
 Lung adenocarcinoma 843 (84.3) 402 (80.4)
 Lung squamous carcinoma 142 (14.2) 85 (17)
 Unknown 15 (1.5) 13 (2.6)