Table 2.

Cox proportional hazards analysis for progression-free (A) and overall-survival (B) for calpain-2 expression. Exp (B) is used to denote hazard ratio, and 95% CI is used to denote 95% confidence interval

	P-value	Exp (B)	95% CI for Exp (B)
			Upper	Lower
(A) Progression-free survival
Calpain-2 expression	0.880	0.955	0.524	1.739
Grade	0.254	1.320	0.820	2.124
Stage	0.001	1.891	1.321	2.706
Optimal debulking	0.861	1.057	0.570	1.961
Platinum sensitivity	0.000	9.025	4.696	17.345
(B) Overall survival
Calpain-2 expression	0.018	2.174	1.144	4.130
Grade	0.060	1.676	0.978	2.873
Stage	0.205	1.265	0.879	1.819
Optimal debulking	0.476	1.258	0.669	2.368
Platinum sensitivity	0.000	4.938	2.462	9.904