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. 2013 Jan 29;346:f325. doi: 10.1136/bmj.f325

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© Wilt et al 2013

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/.

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graphic file with name wilt008064.f5_default.jpg — Fig 5 Forest plots demonstrating subgroup effects (hazard ratio with 95% confidence intervals and P value for interaction) in the Prostate Cancer Intervention versus Observation Trial (PIVOT) comparing radical prostatectomy with observation. The vertical line indicates no effect. The size of the boxes indicates the weight of the effects²⁴