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Table 1 Clinical characteristics of the patients with NSCLC analyzed in the study

From: Identification of a 4-lncRNA signature predicting prognosis of patients with non-small cell lung cancer: a multicenter study in China

Parameters Discovery cohort (N = 194) Validation cohort (N = 172) Independent cohort (N = 73)
Age (X ± SD) 59.2 ± 10.1 59.8 ± 10.2 57.6 ± 9.1
Gender
 Male 144 (74.2%) 136 (79.1%) 52 (71.2%)
 Female 50 (25.8%) 36 (20.9%) 21 (28.8%)
TNM stage
 I 87 (44.8%) 74 (43.0%) 23 (31.5%)
 II 32 (16.5%) 34 (19.8%) 20 (27.4%)
 III 75 (38.7%) 64 (37.2%) 30 (41.1%)
Histological type
 ADC 95 (49.0%) 89 (51.7%) 47 (64.4%)
 SCC 88 (45.3%) 76 (44.2%) 26 (35.6%)
 ADC/SCC 11 (5.7%) 7 (4.1%) 0 (0.0%)
Tumor size (cm)
 < 5 108 (55.7%) 97 (56.4%) 31 (42.5%)
 ≥ 5 86 (44.3%) 75 (43.6%) 42 (57.5%)
Differentiation
 Well/moderate 126 (64.9%) 105 (61.0%) 43 (58.9%)
 Poor 68 (35.1%) 67 (39.0%) 30 (41.1%)
Lymphatic metastasis
 No 105 (54.1%) 81 (47.1%) 45 (61.6%)
 Yes 89 (45.9%) 91 (52.9%) 28 (38.4%)
Follow-up time (month)
 Median (IQR) 37 (24-62) 36 (23-54%) 22 (14-35)
Smoking history
 No 79 (40.7%) 62 (36.0%) 33 (45.2%)
 Yes 115 (59.3%) 110 (64.0%) 40 (44.8%)
Family cancer history
 No 161 (83.0%) 151 (87.8%) 71 (97.3%)
 Yes 33 (17.0%) 21 (12.2%) 2 (2.7%)
  1. SD standard deviation, ADC adenocarcinoma, SCC squamous cell carcinoma, IQR inter-quartile range