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Table 2 Pathologic characteristics

From: Predictive value of CT and 18F-FDG PET/CT features on spread through air space in lung adenocarcinoma

Characteristic

All patients

STAS (+)

STAS (-)

t/χ2 value

p-value

Pathological overall size

2.2 ± 1.0

2.5 ± 1.0

1.8 ± 0.8

3.869

 < 0.001

Histological subtype

   

26.803a

 < 0.001

 MIA

16

0

16

  

 Lepidic predominant

13

8

5

  

 Acinar predominant

65

41

24

  

 Papillary predominant

6

4

2

  

 Micropapillary predominant

2

1

1

  

 Solid predominant

6

6

0

  

T stage

   

13.365a

0.008

 T1a

10

1

9

  

 T1b

41

22

19

  

 T1c

37

21

16

  

 T2a

14

11

3

  

 T2b

6

5

1

  

N stage

   

10.800a

0.005

 N0

88

44

44

  

 N1

12

12

0

  

 N2

8

4

4

  

VPI

   

8.727

0.003

 Present

91

45

46

  

 Absent

17

15

2

  

LVI

   

9.060

0.003

 Present

29

23

6

  

 Absent

79

37

42

  

Perineural invasion

   

0.042a

0.838

 Present

6

3

3

  

 Absent

102

57

45

  
  1. Note: aFisher exact test; STAS Spread through air space, STAS ( +)STAS-positive, STAS (-)STAS-negative, MIA minimally invasive adenocarcinoma, VPI visceral pleural invasion, LVI lymphovascular invasion. The p value < 0.05 indicates a statistically significant difference
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BMC Cancer

ISSN: 1471-2407

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