Table 2. Odds ratios for cancer recurrence by quartiles of IR score.

Quartile	1 (low)	2	3	4 (high)	P trend
IR OR (95% CI)	1	6.5 (1.3–46.8)	10.8 (2.0–86.8)	21.3 (4.2–168.4)	0.020
CAPRA-S OR (95% CI)	1	3.2 (0.8–15.0)	1.3 (0.3–5.3)	6.1 (1.1–40.3)	0.270
KATTAN OR (95% CI)	1	0.8 (0.2–3.1)	1.5 (0.4–6.5)	1.9 (0.4–10.2)	0.111

OR and CI denote odds ratio and confidence interval, respectively.