Prognostic factors for secondary cytoreductive surgery in recurrent ovarian cancer (univariate analyses for variables at recurrence).

Table 1: Prognostic factors for secondary cytoreductive surgery in recurrent ovarian cancer (univariate analyses for variables at recurrence).

Characteristic	Median survival Onda, et al. [15]	Median survival Eisenkop, et al. [16]	Median survival Zang, et al. [18]
No. of patients	44	87	117
DFI (months)
3-12			18
13-23			26
≥ 24			40
< 12	23
≥ 12	47
6-12		25
13-36		44.4
> 36		56.8
Largest recurrence
≤ 10 cm		37.3
> 10 cm		35.6
< 6 cm	40		NA
≥ 6 cm	14		NA
No. of recurrent tumours
Solitary	64	NA	NS
Multiple	27	NA	NS
Liver metastasis
Absent	33	NA	NA
Present	20	NA	NA
Cytoreductive outcome
Visibly disease free	55	44.4
Not visibly disease free	22	19.3
0 cm			_b
≤ 1 cm			26
> 1 cm			14.5
Ascite
No	NA	35.9	25.5
Yes	NA	35.6	17.5
ECOG performance status
0	NS	NS	40.5
1			24.5
2			15.0

DFI: Disease free interval; ECOG: Eastern cooperative oncology group; NA: Not analysed, NS: Not significant, _b: The median survival was not reached.