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Table 1 Clinicopathologic characteristics of 177 patients with invasive T1aN0M0 adenocarcinoma

From: Risk factors of recurrence for resected T1aN0M0 invasive lung adenocarcinoma: a clinicopathologic study of 177 patients

Variables

Number (%)

Five-year RFS%

P-value by log-rank test

Age

   

  ≤ 65

97

83.7%

0.520

  > 65

80

83.5%

Sex

   

  Male

79

84.1%

0.855

  Female

98

83.4%

Smoking history

   

  Never-smoked

128

81.7%

0.424

  Smoker

49

88.7%

Tumor size

   

  ≤ 1 cm

21

95.2%

0.231

  > 1 to ≤ 2 cm

156

82.2%

LVI

   

  Absent

135

87.5%

0.012

  Present

42

72.1%

Histological grading

   

  Well differentiated

78

85.4%

0.535

  Moderately differentiated

66

82.0%

  Poorly differentiated

33

83.0%

Predominant subtypes

   

  Lepidic

45

94.9%

0.022

  Acinar

58

83.1%

  Papillary

37

91.9%

  Solid

18

67.4%

  Micropapillary

19

57.6%

 
  1. Abbreviations: LVI lymphovascular invasion, RFS recurrence-free survival.