Evidence map›Paper›PMID 39055634›Full record

ReviewInternational journal of transgender health2024

Randomized-controlled trials are methodologically inappropriate in adolescent transgender healthcare.

Florence Ashley, Diana M Tordoff, Johanna Olson-Kennedy, Arjee J Restar

Abstract readReview
In one paragraph

Review in International journal of transgender health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. A critical response to recent publications on gender affirming care.Australasian psychiatry : bulletin of Royal Australian and New Zealand College of Psychiatrists · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Cass Review does not guide care for trans young people.The Medical journal of Australia · 2025
    Article
  10. Review
  11. Qualitative research in family medicine.Canadian family physician Medecin de famille canadien · 2025
    Article
  12. Mental Health during Medical Transition in a US and Canadian Sample of Early Socially Transitioned Transgender Youth.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Recognizing and responding to misleading trans health research.International journal of transgender health · 2024
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Florence AshleyFaculty of Law & Joint Centre for Bioethics, University of Toronto, Toronto, ON, Canada.
Diana M TordoffSchool of Medicine, Stanford University, Stanford, CA, USA.
Johanna Olson-KennedyThe Center for Transyouth Health and Development, Division of Adolescent Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA.
Arjee J RestarDepartment of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Despite multiple rigorous observational studies documenting the association between positive mental health outcomes and access to puberty blockers, hormone therapy, and transition-related surgeries among adolescents, some jurisdictions have banned or are attempting to ban gender-affirming medical interventions for minors due to an absence of randomized-controlled trials (RCTs) proving their mental health benefits. Methods: This article critically reviews whether RCTs are methodologically appropriate for studying the association between adolescent gender-affirming care and mental health outcomes. Results: The scientific value of RCTs is severely impeded when studying the impact of gender-affirming care on the mental health of trans adolescent. Gender-affirming interventions have physiologically evident effects and are highly desired by participants, giving rise to concerns over adherence, drop-out, response bias, and generalizability. Complementary and well-designed observational studies can instead be used to ground reliable recommendations for clinical practice and policymaking in adolescent trans healthcare, without the need for RCTs. Conclusion: The lack of RCTs on the mental health impacts of gender-affirming care for trans adolescents does not entail that gender-affirming interventions are based on insufficient evidence. Given the methodological limitations of RCTs, complementary and well-designed observational studies offer more reliable scientific evidence than RCTs and should be considered of sufficient quality to guide clinical practice and policymaking.

Indexed as

evidence-based medicinegender-affirming carerandomized-controlled trialsresearch methodstransgender

Identifiers

PMID39055634
PMCPMC11268232

What Socratic holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.