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. Author manuscript; available in PMC: 2022 Aug 30.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2020 Jan 25;107(2):299–304. doi: 10.1016/j.ijrobp.2020.01.010

Figure 2.

Figure 2

Estimated α/β value and 95% confidence interval as function of experimental arm fraction size. Linear regression model with 95% confidence (dashed) and prediction (dotted) bounds are shown for the best fitting model with slope=0.57 Gy/Gy (SEE=0.19, p=0.017). The linear regression is weighted by the inverse variance of the individual α/β estimates from 9 included studies. The two experimental arms by Dearnaley et al from 2016 are included as individual studies and denoted by experimental arm dose rather than date of publication.