Table 3 Comparison between patients undergoing salvage and elective surgery

Age (year) ^a

61 [18–73]

49 [7–73]

0.54

Sex

0.46

 Male

3

3

 Female

0

2

ECOG scale

0.01

 0–1

0

5

 2–4

3

0

ASA grade

1.0

 1–2

0

1

 3–4

3

4

Operative time (mins)^a

570 [400–600]

480 [360–660]

0.88

Blood loss (mL) ^a

3000 [1750–3400]

700 [200–1850]

0.04

Surgical margin

0.11

 R0 resection

1

5

 R1 resection

2

0

Extent of pulmonary resection

0.14

 Pneumonectomy

3

1

 Lobectomy

0

2

 Wedge resection

0

1

ICU stay (day)^a

12 [4–24]

7 [3–18]

0.29

Postoperative hospital stay (day)^a

24 [12–27]

16 [9–34]

0.54

Postoperative complication

0.07

 No

0

2

 Grade 2

0

1

 Grade 3a

1

2

 Grade 5 (mortality)

2

0