Table 2.

1-, 3-, and 5-year metastasis-free survival rates by Leibovich risk group

	Cohorts
Leibovich Risk Group	Contemporary UK n = 384	Historic UK n = 191	Original Leibovich n = 1671
1-year MFS rate (%) SE
Low	99 ± 1	98 ± 2	99.5 ± 0.3
Intermediate	98 ± 1	94 ± 3	90.4 ± 1.2
High	77 ± 5	72 ± 7	57.7 ± 2.6
3-year MFS rate (%) SE
Low	97 ± 1	95 ± 3	97.9 ± 0.6
Intermediate	91 ± 2	79 ± 4	79.8 ± 1.7
High	62 ± 6	45 ± 8	37.1 ± 2.7
5-year MFS rate (%) SE
Low	97 ± 1	93 ± 3	97.1 ± 0.7
Intermediate	85 ± 3	76 ± 5	73.8 ± 2.0
High	50 ± 7	37 ± 8	31.2 ± 2.7

SE, standard error.