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Table 1 Patient characteristics

From: Correlation of histological components with tumor invasion in pulmonary adenocarcinoma

  n %
Sex Male 91 44.2
Female 115 55.8
Location Central 15 7.3
Peripheral 191 92.7
Stage IA 114 55.3
IB 36 17.5
IIA 22 10.7
IIB 9 4.4
IIIA 21 10.2
IIIB 1 0.5
IV 3 1.5
Tumor size <2 cm 80 38.9
≥2 cm and <3 cm 65 31.6
≥3 cm and <5 cm 51 24.8
≥5 cm and <7 cm 8 3.8
≥7 cm 2 0.9
N stage N0 164 79.6
N1 22 10.7
N2 20 9.7
Pleural invasion Absent 156 75.7
Present 50 24.3
Lymphatic invasion Absent 111 53.9
Present 95 46.1
Vascular invasion Absent 166 80.6
Present 40 19.4