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Table 1 The clinicopathological characteristics of patients with resected T1-3N0 − 2 M0 NSCLC

From: RNSCLC-PRSP software to predict the prognostic risk and survival in patients with resected T1-3N0–2 M0 non-small cell lung cancer

Characteristics Number of patients
All patients 6886 (100%)
Gender
 Male 3363 (48.8%)
 Female 3523 (51.2%)
Age
 ≤65 2964 (43.0%)
 > 65 3922 (57.0%)
Laterality
 Right 3958 (57.5%)
 Left 2928 (42.5%)
Race
 White 5770 (83.8%)
 Black 589 (8.6%)
 Others 527 (7.6%)
N stage a
 N0 4578 (66.5%)
 N1 1228 (17.8%)
 N2 1080 (15.7%)
NELNs
 N ≤ 6 2495 (36.2%)
 6<N ≤ 12 2272 (33.0%)
 N>12 2119 (30.8%)
NPLNs
 N = 0 4658 (67.6%)
 1 ≤ N ≤ 3 1623 (23.6%)
 N ≥ 4 605 (8.8%)
Surgery type
 SLET 599 (8.7%)
 LET 5748 (83.5%)
 PET 539 (7.8%)
Primary site
 UL 4125 (60.0%)
 ML 414 (6.0%)
 LL 2213 (32.1%)
 Others 134 (1.9%)
Histological grade
 I 816 (11.9%)
 II 3158 (45.9%)
 III 2766 (40.2%)
 IV 146 (2.0%)
Histology
 AC 3013 (43.8%)
 S 1629 (23.7%)
 ASC 206 (3.0%)
 BAA 220 (3.2%)
 Others 1818 (26.3%)
Marital status
 Single (never married) 801 (11.6%)
 Married 4115 (59.8%)
 Divorced 854 (12.4%)
 Widowed 1017 (14.8%)
 Others 99 (1.4%)
Tumor extension a
 T1a ss 729 (10.6%)
 T2 Visc PI 4078 (59.2%)
 T2 Centr 1366 (19.8%)
 T3 Inv 68 (1.0%)
 T3 Satell 645 (9.4%)
Tumor size a
 T1a ≤ 1(T ≤ 1) 193 (2.8%)
 T1b>1–2(1<T ≤ 2) 1573 (22.8%)
 T1c>2–3(2<T ≤ 3) 1932 (28.1%)
 T2a>3–4(3<T ≤ 4) 1449 (21.0%)
 T2b>4–5(4<T ≤ 5) 865 (12.6%)
 T3>5–7(5<T ≤ 7) 874 (12.7%)
Survival status
 Dead 2443 (35.5%)
 Alive 4443 (64.5%)
  1. Abbreviations: NELNs Number of examined regional lymph nodes, NPLNs Number of positive regional lymph nodes, SLET sublobectomy, LET Lobectomy, PET Pneumonectomy, UL Upper lobe, ML Middle lobe, LL Lower lobe, I Well differentiated, II Moderately differentiated, III Poorly differentiated, IV Undifferentiated, AC Adenocarcinoma, S Squamous carcinoma, ASC Adenosquamous carcinoma, BAA Bronchioalveolar adenocarcinoma
  2. a According to the eighth edition of the AJCC/UICC stage classification for NSCLC