Answers are grounded in this paper and cite their sources.
Male-to-female (M-F) transsexuals differ consistently from female-to-male (F-M) transsexuals in their sociodemographic characteristics, cross-gender and sexual history and the degree to which personality disorder is concomitant to their transsexuality. As a group, female-to-male transsexuals are more homogeneous. Both groups are impaired in their mental functioning, but the male-to-female population is more mentally disordered. In a comparison between Dutch transsexuals and their Belgian counterparts, the latter were shown to have more mental problems.
No takes yet. Share an insight, caveat, or question.
Cuypere et al. (1995) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: