All

Alive at the end of observation

p1

Tumour type

0.038

Ulcerative

245 (55.4)

78(31.8)

Vegetative

107 (24.2)

44 (41.1)

Mixed

43 (9.7)

18 (41.9)

Stricture

23 (5.2)

4 (17.4)

Unknown

24 (5.4)

4 (16.7)

Tumour stage

<0.001

Stage I

83 (18.8)

49 (59.0)

Stage II

160 (36.2)

65 (40.6)

Stage III

113 (25.6)

30 (26.5)

Stage IV

54 (12.2)

4 (7.4)

Tumour not removed

32 (7.2)

0 (0)

Serosal ingrowth

0.050

No

276 (62.4)

104 (37.7)

Ingrowth

140 (31.7)

38 (27.1)

Unknown

26 (5.9)

6 (23.1)