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Table 1 Clinicopathologic characteristics

From: Risk factors for lymph node metastasis and surgical methods in patients with early-stage peripheral lung adenocarcinoma presenting as ground glass opacity

VariableTotalpN0pN1 + N2X2P value
All patients32730126  
Age (years)   2.2640.322
  ≥ 6017216210  
  < 6015513916  
Gender   5.6630.017
 Male1211174  
 Female20618422  
Smoking history   1.5930.207
 Present1391318  
 Absent18817018  
Tumor size (cm)   29.9860.000
  < 1.079790  
 1.1–2.01401355  
 2.1–3.01088721  
Consolidation tumor ratio(C/T)   14.6760.001
 043430  
 0 to ≤0.550500  
 0.5to<11201119  
 11149717  
CEA level (ng/mL)   5.2460.022
  ≤ 526825117  
 >559509  
Tumor location   0.5690.966
 Right upper lobe102957  
 Right middle lobe31283  
 Right lower lobe53494  
 Left upper lobe79736  
 Left lower lobe62566  
Operations type   5.5600.062
 Wedge29290  
 Segmentectomy43421  
 Lobectomy25523025  
Pathologic type   10.4070.004
 AIS31310  
 MIA52520  
 IA24421826  
Lymphovascular invasion   53.1890.000
 Present513417  
 Absent2762679  
Pleural invasion   44.4690.000
 Present463115  
 Absent28127011  
  1. PGGO pure ground-glass opacity, AIS adenocarcinoma in situ, MIA minimally invasive adenocarcinoma, IA invasive adenocarcinoma.