Table 4

Univariate and Multivariate analysis for platinum resistance

	Univariate			Multivariate
	OR	95% CI	P value	OR	95% CI	P value
Age
<65	Ref	Ref		Ref	Ref
>65	1.31	0.72 to 2.37	0.377	1.23	0.65 to 2.33	0.526
Stage
3	Ref	Ref		Ref	Ref
4	1.03	0.57 to 1.87	0.931	1.03	0.53 to 1.97	0.94
Pre-operative CA125 >35	1.57	0.84 to 2.93	0.162	1.48	0.76 to 2.88	0.246
Surgical Complexity Score
Low (1–3)	Ref	Ref		Ref	Ref
Moderate (4–7)	1.43	0.75 to 2.72		1.28	0.65 to 2.54	0.48
High (>7)	2	0.62 to 6.53		1.48	0.41 to 5.27	0.549
Residual disease
Complete surgical resection	Ref	Ref		Ref	Ref
<1 cm single location	1.22	0.48 to 3.10	0.682	1.07	0.40 to 2.86	0.888
<1 cm multiple locations	3.65	1.74 to7.63	0.001	3.09	1.41 to6.78	0.005