People with psychiatric conditions – and sometimes neurodiverse conditions – are much more likely to die by suicide than gender dysphoric people.
A Swedish study  found that suicide rates for personality disorder, schizophrenia, substance addiction, bipolar and (among males) depression and autism were all higher than suicide rates for gender dysphoric people:
These high suicide rates for schizophrenia are confirmed by another study  which puts the lifetime risk of suicide death for schizophrenics at 5.6%. This study also finds “the absolute risk of suicide in different psychiatric disorders to vary from 2% to 8%, higher for men than for women and highest for men and women with bipolar disorder, unipolar affective disorder, schizophrenia, and schizophrenialike disorder.”
 Swedish National Board of Health and Welfare (2020). Utvecklingen av diagnosen könsdysfori: Förekomst, samtidiga psykiatriska diagnoser och dödlighet i suicid. Socialstyrelsen. [Link]
 Nordentoft, M., Madsen, T. & Fedyszyn, I. (2015). Suicidal behavior and mortality in first-episode psychosis. J Nerv Ment Dis. 203 (5): 387-92. [Link]