Table 1B. Univariate and multivariate Cox proportional hazards regression model for progression-free survival (n=140).

Variables	Univariate P-value	HR (95% CI)	Multivariate P-value	HR (95% CI)
Age	0.013	1.023 (1.005–1.042)	0.875
Optimal cytoreductive surgery	<0.001	3.55 (2.15–5.86)	0.005	2.10 (1.25–3.52)
Stage III/IV vs I/II	<0.001	8.11 (4.33–15.19)	<0.001	7.17 (3.79–13.58)
IMP1	0.92	0.97 (0.63–1.51)
IMP2	0.61	1.11 (0.72–1.74)
IMP3	0.015	1.73 (1.10–2.71)	0.05	1.57 (1.01–2.48)
Lin28B	0.007	1.84 (1.18–2.86)	0.08
Lin28	0.23	0.76 (0.48–1.18)

Abbreviation: CI=confidence interval; HR=hazard ratio; IMP=insulin-like growth factor 2 mRNA-binding proteins (IGF2BPs; refered to as IMPs).