Table 2. Univariate analyses for variables at recurrence.

Variables	Number	Median survival (months)	P-value
Age at recurrence (years)
<50	17	29
⩾50	27	40	0.860
Disease-free interval (months)
⩾12	31	47
<12	13	23	0.002
Intraperitoneal tumour
Absent	12	64
Present	32	27	0.117
Pelvic or aortic lymph node metastases
Absent	34	32
Present	10	37	0.419
Distant metastasis
Absent	38	32
Present	6	40	0.496
Liver metastasis
Absent	42	33
Present	2	20	0.005
No. of recurrent tumours
Solitary	16	64
Multiple	28	27	0.007
Size of maximum tumour (cm)
<6	38	40
⩾6	6	14	<0.001
Massive ascites (>500 ml)
Absent	41	33
Present	3	32	0.318
PS
0–2	42	29
3	2	42	0.746
Presurgical chemotherapy
Not done	23	33
Done	21	29	0.677
Bowel resection
Not done	33	33
Done	11	27	0.650
Residual tumour at SCS
0	26	52
Any	18	22	0.002

PS=performance status; SCS=secondary cytoreductive surgery.