A review into the NHS’s gender identity services has found that children and young people have been let down by a lack of research and evidence on medical interventions in a debate that has become exceptionally toxic. Dr Hilary Cass said her report was not about defining “what it means to be trans” or “undermining the validity of trans identities”, but about “how best to help the growing number of children and young people who are looking for support from the NHS in relation to their gender identity”. Here are the review’s key findings. “This is an area of remarkably weak evidence,” Cass writes in the foreword to her 398-page report. Despite that, she adds: “Results of studies are exaggerated or misrepresented by people on all sides of the debate to support their viewpoint. The reality is that we have no good evidence on the long-term outcomes of interventions to manage gender-related distress.”