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Table 1 Baseline characteristics of patients

From: Selecting short length nucleic acids localized in exosomes improves plasma EGFR mutation detection in NSCLC patients

Characteristic All patients (N = 47)a
Age (years) 73 (52–85)
Gender
 Female 19 (40.4%)
 Male 28 (59.6%)
Histologic type
 Adenocarcinoma 32 (68.1%)
 Squamous cell carcinoma 9 (19.1%)
 Other 6 (12.8%)
Tumor stage
 I 5 (10.6%)
 II 2 (4.3%)
 III 9 (19.1%)
 IV 31 (66.0%)
M categoryb
 M0 16 (34.0%)
 M1a 8 (17.0%)
 M1b 3 (6.4%)
 M1c, single organ 3 (6.4%)
 M1c, multi organs 17 (36.2%)
Chemotherapy
 TKI-naïve 43 (91.5%)
 TKI-treated 4 (8.5%)
  1. Other not otherwise specified, TKI tyrosine kinase inhibitor
  2. aResults are expressed as median (range) or number (%)
  3. bAccording to the 8th TMN edition, M1a indicates lung metastases or pleural/pericardial malignant effusion or nodules; M1b indicates a single metastatic lesion in a single distant organ; M1c indicates multiple lesions in a single organ or multiple lesions in multiple organs