All

n = 824

Alive at the end of observation

n = 277

p-value¹

Serosal involvement

No

Yes

Unknown

434 (52.7)

337 (40.9)

53 (6.4)

161 (37.1)

109 (32.3)

7 (13.2)

0.170

Tumour stage

Stage I

Stage II

Stage III

Stage IV

Tumour not removed

55 (6.7)

364 (44.2)

190 (23.1)

176 (21.4)

39 (4.7)

33 (60.0)

173 (47.5)

65 (34.2)

6 (3.4)

0

<0.001