Table 1 Patient characteristics

N

172

26

34

232

Age (years), mean

65.4

67.3

72.7

66.7

Gender (%)

  Male

84.9

88.5

73.5

83.6

  Female

15.1

11.5

26.5

16.4

TNM Stage (%)

  I

22.7

-

5.9

-

  II

6.4

-

-

-

  III

20.9

-

11.8

-

  IV

41.3

-

47.1

-

  Limited disease

-

26.9

-

-

  Extensive disease

-

61.5

-

-

  Unknown

8.7

11.5

35.3

-

Surgery (%)

34.9

-

11.8

27.6

  Partial lobectomy

3.3

-

25.0

4.6

  Lobectomy

59.

-

75.0

60.0

  Bilobectomy

11.5

-

-

10.8

  Pneumonectomy

9.8

-

-

9.2

  Exploratory thoracotomy

8.2

-

-

7.7

  Others

8.2

-

-

7.7

Chemotherapy (%)

53.5

80.8

20.6

51.7

  Intention

    Neoadjuvant

3.0

-

-

2.2

    Adjuvant

5.9

-

-

4.5

    Radical

8.8

25.9

-

11.2

    Palliative

45.2

41.9

46.2

44.7

    Unknown

37.0

32.3

53.8

37.4

  Treatment scheme

    Cisplatin/Carboplatin + Docetaxel

5.9

-

7.7

5.0

    Cisplatin/Carboplatin + Etoposide

6.7

67.7

-

16.8

    Cisplatin/Carboplatin + Gemcitabine

23.7

-

7.7

18.4

    Cisplatin/Carboplatin + Paclitaxel

6.7

3.2

15.4

6.7

    Cisplatin/Carboplatin + Pemetrexed

5.9

-

7.7

5.0

    Cisplatin/Carboplatin + Vinorelbine

16.3

-

7.7

12.8

    Docetaxel

4.4

-

7.7

3.9

    Erlotinib

11.9

3.2

15.4

10.6

    Pemetrexed

8.1

-

15.4

7.3

    Others

10.3

25.8

15.4

13.4

Radiotherapy (%)

35.5

69.2

8.8

35.3

  Radical

31.0

20.8

0.0

26.8

  Palliative

53.5

50.0

83.3

54.4

  Unknown

15.5

29.2

16.7

18.8