Prognostic Significance of the Tumor-Stroma Ratio in Epithelial Ovarian Cancer

Table 2

The determination of the best cutoff for tumor-stroma ratio (TSR) in EOC.

TSR	Number	3-year PFS		P	5-year survival rate		P
<20%	6	0	0.671	0.413	0	0.289	0.591
≥20%	832	48.2%			40%
<30%	91	52.5%	3.240	0.072	47.2%	4.312	0.038
≥30%	747	47.6%			38.1%
<40%	221	58.7%	2.402	0.087	48.4%	5.605	0.018
≥40%	617	54.2%			37.1%
<50%	575	55.3%	13.704	<0.001	45.6%	12.251	<0.001
≥50%	263	33.8%			29.1%
<60%	665	46.5%	3.965	0.046	46.6%	7.338	0.007
≥60%	173	42.2%			34.4%
<70%	717	47.8%	3.058	0.080	40.2%	3.778	0.052
≥70%	125	52.8%			41.4%
<80%	796	47.5%	0.399	0.528	39.8%	1.611	0.204
≥80%	42	69%			53.2%
<90%	824	48.4%	0.103	0.749	40.3%	0.992	0.319
≥90%	14	57.1%			47.6%

PFS: progression-free survival.
Analysis was performed using the Kaplan-Meier method.
The minimum value was indicated in bold font.