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. 2013 Oct 1;87(2):261–269. doi: 10.1016/j.ijrobp.2013.06.2044

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© 2013 Elsevier Inc.

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Fig. 4 — (a) 2Kaplan-Meier plot of time to locoregional recurrence. Cox model estimated absolute difference in locoregional recurrence-free rate (95% confidence interval) at 2 years: 6.4% (−7.3%, 16.8%). First locoregional recurrence (standard whole-bladder radiation therapy [sRT] vs reduced high-dose volume radiation therapy [RHDVRT]) was noninvasive for 21 (19.4%) vs 18 (16.2%), invasive for 15 (13.9%) vs 11 (9.9%), in the pelvic nodes for 5 (4.6%) vs 5 (4.5%), and unknown for one RHDVRT patient. (b) Kaplan-Meier plot of overall survival by randomized group. Cox model estimated absolute difference (95% confidence interval) at 2 years: 4.7% (−6.0%, 13.4%).