Table 3 Overall survival of 57 patients with advanced SCCS according to clinical variables

T stage

0.018

   T3

36

48.7

   T4

21

24.2

N stage

0.070

   N0

46

43.3

   N1

11

34.1

Anatomic site

0.378

   Upper extremity

07

47.6

   Other

50

40.0

Previous lesion

0.507

   Present

15

37.7

   Absent

42

42.2

Lymph node metastasis

0.948

   Present (N1f)

11

33.9

   Absent (N0f)

35

46.2