Bottom line: Good news! In 2022 and 2023, at ACEP, SAEM and AAEM, invited speakers were evenly split 50/50 women and men (with a small percentage nonbinary) showing no significant gender bias toward speaker invitation.
References
Gender Representation Among Invited Physician Speakers at National Emergency Medicine Conferences
Krzyzaniak, Sara M. et al.
Annals of Emergency Medicine, Volume 87, Issue 2, 239 - 243