Table 2. Multivariable Cox proportional hazards analysis for progression-free and overall survival.

	Progression-free survival		Overall survival
	HR (95%CI)	P	HR (95%CI)	P
Treatment arm
Radiotherapya	1	0.64	1	0.85
Chemotherapy	0.92 (0.65–1.30)		1.04 (0.72–1.50)
Age (years)
<70a	1	0.009	1	0.001
≥70	1.71 (1.15–2.56)		1.99 (1.31–3.02)
Tumor grade
1 or 2a	1	<0.0001	1	<0.0001
3	2.74 (1.78–4.22)		3.09 (1.96–4.89)
Myometrial invasion
⩽50%a	1	0.001	1	0.002
>50%	2.20 (1.36–3.57)		2.22 (1.34–3.69)
Stage
I or IIa	1	<0.0001	1	<0.0001
III	2.70 (1.75–4.15)		3.17 (2.00–5.01)

HR=hazard ratio, CI=confidence interval

^aReference category