Table 3 Comparison of outcome between IS and non-IS groups in patients with lung cancers undergoing surgical resection via VATs and thoracotomy

Hospitalization cost (USD)¹

5976.8

3823

5295.5

6568.4

4994.5

5536.5

−524.5

(−982.6, −66.4)*

5668.3

4851.4

4864.6

6425.9

7440.6

4904.6

− 705.5

(− 1013, − 398.3)***

Length of stay (d)¹

19.3

80.9

13

18.3

40.1

13

1.13

(−5.72, 7.97)

19.5

20.4

16

23.3

117.6

17

−3.60

(−7.27, 0.07)

Pneumonia (n, %)²

23

3.09

36

5.46

0.55

(0.32, 0.95)*

234

5.56

120

6.19

0.90

(0.72, 1.14)

ADRS (n, %)²

0

0.00

2

0.30

NA

3

0.07

2

0.10

0.82

(0.14, 4.97)

 ED visit frequency¹

0.27

0.69

0

0.28

0.93

0

−0.02

(−0.10, 0.07)

0.30

0.78

0

0.31

0.85

0

−0.02

(−0.06, 0.03)

 Hospitalization frequency¹

0.59

1.06

0

0.63

1.08

0

−0.05

(−0.16, 0.05)

0.54

1.01

0

0.50

0.98

0

0.02

(−0.03, 0.07)

 ED visit frequency¹

0.48

1.02

0

0.51

1.31

0

− 0.03

(− 0.15, 0.09)

0.54

1.22

0

0.55

1.23

0

−0.01

(− 0.08, 0.05)

 Hospitalization frequency¹

1.20

1.89

0

1.24

2.01

0

−0.07

(− 0.26, 0.11)

1.16

1.91

0

1.05

1.74

0

0.08

(−0.02, 0.18)

 ED visit frequency¹

0.79

1.50

0

0.94

2.24

0

−0.17

(−0.36, 0.03)

0.98

1.99

0

0.93

1.66

0

0.04

(−0.06, 0.14)

 Hospitalization frequency¹

1.81

2.72

0

1.83

2.80

0

−0.08

(−0.34, 0.18)

1.87

2.77

0

1.74

2.64

0

0.07

(−0.07, 0.21)