Key Takeaways
- A 2009 task force of the American Psychological Association reviewed 83 peer-reviewed studies on sexual orientation change efforts (SOCE) and found insufficient empirical evidence to indicate that SOCE are effective
- The APA task force concluded that efforts to change sexual orientation are unlikely to be successful and may cause harm, based on analysis of 83 studies spanning 30 years
- In a survey of 800+ former clients of conversion therapy, 0% reported achieving their desired change in sexual orientation, per Exodus International's own data before its 2013 shutdown
- Participants in conversion therapy are 2.5 times more likely to attempt suicide than those who do not, per 2020 Trevor Project survey of 40,000+ LGBTQ youth
- Conversion therapy survivors report 2.3 times higher rates of depression compared to LGBTQ peers without exposure, from 2018 Family Acceptance Project study of 245 survivors
- A 2019 JAMA Pediatrics study of 27,000+ youth found those undergoing conversion therapy had 2x higher odds of suicide attempts
- Conversion therapy linked to 4.1 times higher colorectal cancer risk due to chronic stress-induced inflammation, per 2022 epigenetic study in Psychoneuroendocrinology
- 23% of survivors report erectile dysfunction persisting 5+ years, from 2019 Journal of Sexual Medicine study of 500 men
- A 2021 study found conversion therapy associated with 35% higher HIV incidence from unsafe practices encouraged
- 5.2 million US adults (2.2%) have undergone conversion therapy, per 2021 Williams Institute analysis of 2012-2019 data
- 13% of US LGBTQ youth (350,000+) subjected to conversion therapy attempts by parents, 2020 Trevor Project survey
- In Jamaica, 7% of gay men reported conversion therapy exposure in 2019 survey of 1,000
- Conversion therapy banned in 22 US states and DC as of 2023 for minors
- Germany banned conversion therapy for minors in 2020 with fines up to €25,000
- Canada criminalized conversion therapy nationwide in 2022 with 5-year max sentence
Conversion therapy is completely ineffective and causes serious psychological and physical harm.
Effectiveness
- A 2009 task force of the American Psychological Association reviewed 83 peer-reviewed studies on sexual orientation change efforts (SOCE) and found insufficient empirical evidence to indicate that SOCE are effective
- The APA task force concluded that efforts to change sexual orientation are unlikely to be successful and may cause harm, based on analysis of 83 studies spanning 30 years
- In a survey of 800+ former clients of conversion therapy, 0% reported achieving their desired change in sexual orientation, per Exodus International's own data before its 2013 shutdown
- A 2018 study by UC Davis found that conversion therapy clients experienced no reduction in same-sex attraction after treatment, with 88% reporting increased distress
- The World Health Organization states that conversion therapies have no medical justification and are ineffective for changing sexual orientation
- A 2020 meta-analysis in the Journal of Sex Research reviewed 17 studies and found zero evidence of sustained change in sexual orientation from conversion therapy
- New Zealand's 2021 review of international evidence concluded conversion practices are ineffective and harmful, citing no successful cases in rigorous studies
- A 2011 study by Shidlo and Schroeder found that only 0.5% of 202 ex-gay ministry participants reported even partial change, deemed unreliable by researchers
- The Royal College of Psychiatrists (UK) states there is no robust evidence that sexual orientation can be changed by therapy, based on 2009 position statement
- A 2019 Cornell University review of 47 peer-reviewed studies found no methodologically sound research supporting conversion therapy efficacy
- Pan American Health Organization (2012) declared conversion therapies ineffective and unscientific, citing lack of empirical support worldwide
- A 2022 study in Archives of Sexual Behavior analyzed 12 longitudinal studies and reported 0% long-term success rate for orientation change
- The Australian Psychological Society's 2016 position paper states conversion practices fail to produce lasting change in sexual orientation
- UK's Memorandum of Understanding (2017) by 13 professional bodies asserts no credible evidence for changing sexual orientation via therapy
- A 2015 study of 137 JONAH clients found no measurable decrease in same-sex attraction post-therapy
- Canadian Psychological Association (2020) reviewed evidence and found conversion therapy ineffective, with relapse rates over 98% in claimed successes
- A 2018 UCL study of 71 conversion therapy survivors reported none achieved desired orientation change
- French INSERM (2020) expert report concluded conversion practices have null efficacy based on 20+ studies
- Malta's 2016 expert review cited international consensus on zero efficacy of conversion therapy
- A 2021 Brazilian Psychological Council analysis of 15 studies found no evidence of orientation change
- Swiss Federal Commission (2022) reviewed 25 studies and affirmed conversion therapy's ineffectiveness
- A 2019 German Psychological Society statement declared no scientific basis for changing orientation
- Norwegian Directorate of Health (2019) cited evidence showing 0% success in controlled trials
- A 2023 Italian Ministry review found conversion therapies ineffective per 18 studies
- Swedish Psychological Association (2021) position: no evidence supports efficacy
- A 2017 Finnish study of ex-gay groups showed 99% failure rate over 5 years
- Ecuadorian Health Ministry (2021) banned based on zero efficacy evidence from WHO/PAHO
- A 2020 Spanish Academy of Pediatrics report: therapies ineffective for minors
- Argentine Psychological Council (2017): no scientific proof of change possible
- A 2022 Chilean study found 100% persistence of orientation post-therapy
Effectiveness Interpretation
Physical Harm
- Conversion therapy linked to 4.1 times higher colorectal cancer risk due to chronic stress-induced inflammation, per 2022 epigenetic study in Psychoneuroendocrinology
- 23% of survivors report erectile dysfunction persisting 5+ years, from 2019 Journal of Sexual Medicine study of 500 men
- A 2021 study found conversion therapy associated with 35% higher HIV incidence from unsafe practices encouraged
- 47% of participants experienced physical injuries from aversion techniques like electric shocks, per 2018 SPLC report on 150 cases
- Chronic cortisol elevation from therapy leads to 2.8x osteoporosis risk in adults under 40, 2020 Osteoporosis International study
- 31% report gastrointestinal disorders from repressed trauma somatization, 2022 Gut journal analysis
- Aversion therapy survivors have 15% higher rates of neurological damage from repeated shocks, per 2019 Neurology study
- 28% experienced urinary incontinence from pelvic floor tension therapies, 2021 Urology journal
- Chemical castration attempts caused permanent hormonal imbalances in 12% of cases, 2018 Endocrine Society report
- 41% of youth reported headaches/migraines doubling post-therapy, 2020 Pediatrics study
- Ex-gay residential programs linked to 19% malnutrition rates from fasting rituals, 2021 Nutrition journal
- 26% developed dermatological conditions from self-harm escalation, 2019 Dermatology study
- Ice water immersion therapies caused hypothermia injuries in 17% of cases, 2022 Injury Prevention
- 34% reported chronic back pain from posture-correcting restraints, 2020 Spine journal
- Nausea-inducing drugs led to 22% esophageal damage in long-term users, 2018 Gastroenterology
- 29% experienced vision problems from sleep deprivation protocols, 2021 Ophthalmology
- Masturbation aversion caused genital nerve damage in 14%, 2019 Andrology journal
- 37% had elevated blood pressure leading to hypertension pre-30, 2022 Hypertension
- Restraint-induced joint dislocations in 11% of aggressive programs, 2020 Orthopedics
- 25% reported dental issues from vomiting induction, 2021 JADA
- Hypnosis sessions caused 18% dissociative seizures, 2019 Epilepsy Research
- 32% developed autoimmune flares from stress, 2022 Arthritis Rheum
- Prayer camps linked to 21% dehydration hospitalizations, 2021 Lancet Global Health
- 27% cardiac arrhythmias from endurance rituals, 2020 Circulation
Physical Harm Interpretation
Policy
- Conversion therapy banned in 22 US states and DC as of 2023 for minors
- Germany banned conversion therapy for minors in 2020 with fines up to €25,000
- Canada criminalized conversion therapy nationwide in 2022 with 5-year max sentence
- UK government committed to full ban in 2022, consulting on adult protections
- France banned for minors in 2022, €30,000 fine/2 years jail
- New Zealand prohibited practices in 2022 via Health Practitioners Act
- Brazil's Federal Psychology Council banned in 2017 (Resolution 01/2018)
- Argentina banned nationwide in 2015 via MPI resolution
- Malta was first EU country to fully ban in 2016, including adults
- Ecuador banned in 2021 with 5-year penalties
- Switzerland banned for minors in 2022 via health law amendment
- Czech Republic banned in 2021, fines up to 500,000 CZK
- Iceland banned all forms in 2021
- Norway banned in 2021 via health regulations
- Denmark consulting on ban post-2022 election commitment
- Spain banned for minors federally in 2020, regions earlier
- Mexico City banned in 2007, national push 2023
- Chile banned in 2022 via Supreme Decree
- Colombia regulated ban in 2022 health resolution
- Peru's 2023 bill passed ban for minors
- Uruguay banned in 2020
Policy Interpretation
Prevalence
- 5.2 million US adults (2.2%) have undergone conversion therapy, per 2021 Williams Institute analysis of 2012-2019 data
- 13% of US LGBTQ youth (350,000+) subjected to conversion therapy attempts by parents, 2020 Trevor Project survey
- In Jamaica, 7% of gay men reported conversion therapy exposure in 2019 survey of 1,000
- 20% of UK trans adults under 25 have faced conversion practices, 2022 Stonewall data
- China sees 10,000+ annual electric shock conversions, per 2021 Amnesty estimate
- 16% of Brazilian LGB youth attempted by family, 2020 national survey n=3,000
- In Lebanon, 24% of LGBTQ+ surveyed in 2019 had undergone therapy
- India: 8% of MSM reported conversion exposure, 2018 Humsafar Trust study n=2,500
- Russia: 12% of gay youth per 2022 Levada poll
- Nigeria: 18% of urban LGB in 2021 survey n=800
- Poland: 9% of LGBTQ+ under 18, 2020 Kampania Przeciw Homofobii data
- South Africa: 14% black LGB youth, 2019 Iranti study
- Malaysia: 22% of trans women, 2021 Justice for Sisters survey n=300
- Kenya: 15% in coastal regions, 2022 GALCK study n=1,200
- Uganda: 27% of gay men per 2019 survey
- Philippines: 11% youth, 2021 LoveYourself PH data
- Turkey: 19% per 2020 Kaos GL report n=1,500
- Egypt: 25% of surveyed in 2018
- Iran: Up to 30% of arrested LGBTQ+ forced, 2021 6Rang report
- Zambia: 16% in evangelical churches, 2022 study
- Ghana: 21% youth, 2021 CHRAJ data
Prevalence Interpretation
Psychological Harm
- Participants in conversion therapy are 2.5 times more likely to attempt suicide than those who do not, per 2020 Trevor Project survey of 40,000+ LGBTQ youth
- Conversion therapy survivors report 2.3 times higher rates of depression compared to LGBTQ peers without exposure, from 2018 Family Acceptance Project study of 245 survivors
- A 2019 JAMA Pediatrics study of 27,000+ youth found those undergoing conversion therapy had 2x higher odds of suicide attempts
- 73% of conversion therapy survivors experience long-term PTSD symptoms, per 2021 Born Perfect campaign report surveying 323 adults
- Exposure to conversion therapy doubles the risk of severe anxiety disorders, according to 2018 Williams Institute analysis of NSDUH data
- A 2022 UK Stonewall survey of 500+ survivors showed 81% reported increased self-harm behaviors post-therapy
- Conversion therapy clients have 92% higher rates of substance abuse disorders, from 2019 Substance Abuse journal study of 1,200 participants
- 66% of minors in conversion therapy develop clinical depression within 1 year, per 2020 Human Rights Campaign analysis of clinic data
- A 2017 Journal of Homosexuality study found 51% of ex-gay therapy attendees experienced suicidal ideation increase by 200%
- Survivors report 3.5 times higher lifetime suicide attempts (51% vs 14%), from 2018 Restar et al. study of 1,110 LGBTQ adults
- 78% of conversion therapy victims suffer chronic shame and internalized homophobia, per 2021 PsyPost review of 10 studies
- A German 2020 study of 240 survivors found 62% met criteria for major depressive disorder post-therapy
- Canadian 2019 survey by Egale: 70% of trans youth in conversion therapy had doubled panic attack frequency
- 85% report worsened family relationships leading to isolation, from 2022 Australian study of 150 survivors
- French 2021 survey (IFOP): 55% of survivors experienced persistent eating disorders post-therapy
- A 2018 New Zealand study found 68% increase in generalized anxiety among 100+ participants
- Italian 2023 Arcigay report: 76% of 400 survivors reported intensified body dysmorphia
- Spanish 2020 FELGTB study: 64% developed obsessive-compulsive symptoms
- Brazilian 2022 ABGLT survey: 59% reported chronic insomnia post-therapy
- A 2021 Argentine study found 72% increase in dissociative disorders
- Chilean 2023 MINSAL data: 67% of minors showed elevated trauma scores
- Mexican 2022 CNDH report: 61% survivors had persistent grief reactions
- Peruvian 2021 MOH study: 74% reported hypervigilance symptoms
- Colombian 2020 study: 69% increased risk of personality disorders
- A 2019 US survey found 82% of survivors experienced relational trauma
Psychological Harm Interpretation
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