Table 3.

Comparison of Risk of Each Recurrence-Free Duration for Survival Rates (n=1,295)

Recurrence-free duration	HR (95% CI)	p-value*
<1 yr vs 1–2 yr	0.44 (0.31–0.63)	<0.001
<1 yr vs 2–3 yr	0.35 (0.22–0.55)	<0.001
<1 yr vs >3 yr	0.12 (0.06–0.23)	<0.001
1–2 yr vs 2–3 yr	0.79 (0.46–1.33)	0.37
1–2 yr vs >3 yr	0.27 (0.13–0.55)	<0.001
2–3 yr vs >3 yr	0.34 (0.15–0.75)	0.007

HR, hazard ratio; CI, confidence interval.

^*p-value estimated by Cox proportional hazard regression method.