Table 1 Characteristics of all patients

Age (years)

 Median (range)

56 (31–70)

 <65 vs. ≥65

99 vs. 18

84.6 vs. 15.4

Gender

 Male vs. female

69 vs. 48

59 vs. 41

BMI

 Median (range)

22.23 (16.42–29.39)

 < 24 kg/m² vs. ≥24 kg/m²

79 vs. 38

67.5 vs. 32.5

Smoking status

 Non-smokers vs. smokers

63 vs. 54

53.8 vs.46.2

Drinking status

 Non-drinkers vs. drinkers

84 vs. 33

71.8 vs.28.2

Histology

 Adenocarcinoma vs. non-adenocarcinoma

86 vs.31

73.5 vs.26.5

T stage

 1–2

93

79.5

 3–4

24

20.5

N stage

 0–1

62

53

 2

55

47

Disease stage

 IB-II

54

46.2

 IIIA

63

53.8

Surgery type

 Lobectomy

109

93.3

 Pneumonectomy

8

6.7

Radiotherapy

 No

106

90.6

 Yes

11

9.4

Adjuvant chemotherapy regimens

 Cisplatin/carboplatin/nedaplatin + pemetrexed

86

73.5

 Others

31

26.5

 Cisplatin/carboplatin/nedaplatin + docetaxel

14

12.0

 Cisplatin/carboplatin/nedaplatin + paclitaxel

9

7.7

 Cisplatin + gemcitabine

8

6.8