Table 1 Comparison of patient and tumor characteristics between the recurrence and non-recurrence groups

Male / Female (n)

56 / 32

26 / 6

Age (years)

68 ± 9

67 ± 10

Body weight (kg)

58.8 ± 10.3

56.4 ± 9.2

pSize (mm)

19.2 ± 5.7

24.2 ± 5.7

3D-IRA at early phase (HU)

36.7 ± 19.1

30.0 ± 14.6

Corrected 3D-IRA at early phase

6.18 ± 3.25

4.94 ± 2.42

3D-IRA at delayed phase (HU)

45.5 ± 15.7

40.6 ± 14.8

Corrected 3D-IRA at delayed phase

7.63 ± 2.51

6.68 ± 2.37

Adenocarcinoma / SqCC / Others (n)

58 / 22 / 8

19 / 9 / 4

Differentiation grade 1 / 2 / 3 / 4 (n)

14 / 53 / 17 / 4

4 / 20 / 6 / 2

cStage IA / IB/ II-III (n)

60 / 24 / 4

11 / 15 / 6

pStage IA / IB / II-III (n)

51 / 24 / 13

7 / 5 / 20

Lobectomy / Segmentectomy /WWR

78 / 9 / 1

27 / 4 / 1

Adjuvant therapy none / Available (n)

53 / 15

13 / 13