Smoking

Yes

173

86.9%

No

26

13.1%

Therapy (during the study or earlier)

Radiotherapy (as monotherapy)

1

0.5%

Chemotherapy (as monotherapy)

105

52.5%

Combination of radiotherapy-chemotherapy

40

20%

Combination of chemotherapy-surgical resection

41

20.5%

Combination of radiotherapy-chemotherapy-

surgical resection

13

6.5%

Metastases (in brain, bones, liver, etc).

Yes

49

24.5%

No

151

75.5%

Recurrence during last month

Yes

20

10%

No

180

90%