Figure 9 gives an overview of what happens to submissions to journals adopting transparent peer review and the control group journals pre- and post- the introduction of transparent peer review for cases where reviewers are or are not invited. The rejection rates increased in both the transparent peer review group and the control group for manuscripts where no peer reviewers were invited.  However, following the introduction of transparent peer review, if a manuscript is rejected directly by the editor, more manuscripts are referred to another journal post the introduction of transparent peer review than previously. This effect is not seen in the control group. 
Where reviewers were invited, the overall rejection rate increased only very slightly, and, depending on test performed, did not even achieve significance.