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Dive into the research topics where Annelou L. C. de Vries is active.

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Featured researches published by Annelou L. C. de Vries.


Pediatrics | 2014

Young Adult Psychological Outcome After Puberty Suppression and Gender Reassignment

Annelou L. C. de Vries; Jenifer K. McGuire; Thomas D. Steensma; Eva C.F. Wagenaar; Theo A. H. Doreleijers; Peggy T. Cohen-Kettenis

BACKGROUND: In recent years, puberty suppression by means of gonadotropin-releasing hormone analogs has become accepted in clinical management of adolescents who have gender dysphoria (GD). The current study is the first longer-term longitudinal evaluation of the effectiveness of this approach. METHODS: A total of 55 young transgender adults (22 transwomen and 33 transmen) who had received puberty suppression during adolescence were assessed 3 times: before the start of puberty suppression (mean age, 13.6 years), when cross-sex hormones were introduced (mean age, 16.7 years), and at least 1 year after gender reassignment surgery (mean age, 20.7 years). Psychological functioning (GD, body image, global functioning, depression, anxiety, emotional and behavioral problems) and objective (social and educational/professional functioning) and subjective (quality of life, satisfaction with life and happiness) well-being were investigated. RESULTS: After gender reassignment, in young adulthood, the GD was alleviated and psychological functioning had steadily improved. Well-being was similar to or better than same-age young adults from the general population. Improvements in psychological functioning were positively correlated with postsurgical subjective well-being. CONCLUSIONS: A clinical protocol of a multidisciplinary team with mental health professionals, physicians, and surgeons, including puberty suppression, followed by cross-sex hormones and gender reassignment surgery, provides gender dysphoric youth who seek gender reassignment from early puberty on, the opportunity to develop into well-functioning young adults.


The Journal of Sexual Medicine | 2011

Puberty Suppression in Adolescents With Gender Identity Disorder: A Prospective Follow‐Up Study

Annelou L. C. de Vries; Thomas D. Steensma; Theo A. H. Doreleijers; Peggy T. Cohen-Kettenis

INTRODUCTION Puberty suppression by means of gonadotropin-releasing hormone analogues (GnRHa) is used for young transsexuals between 12 and 16 years of age. The purpose of this intervention is to relieve the suffering caused by the development of secondary sex characteristics and to provide time to make a balanced decision regarding actual gender reassignment. AIM To compare psychological functioning and gender dysphoria before and after puberty suppression in gender dysphoric adolescents. METHODS Of the first 70 eligible candidates who received puberty suppression between 2000 and 2008, psychological functioning and gender dysphoria were assessed twice: at T0, when attending the gender identity clinic, before the start of GnRHa; and at T1, shortly before the start of cross-sex hormone treatment. MAIN OUTCOME MEASURES Behavioral and emotional problems (Child Behavior Checklist and the Youth-Self Report), depressive symptoms (Beck Depression Inventory), anxiety and anger (the Spielberger Trait Anxiety and Anger Scales), general functioning (the clinicians rated Childrens Global Assessment Scale), gender dysphoria (the Utrecht Gender Dysphoria Scale), and body satisfaction (the Body Image Scale) were assessed. RESULTS Behavioral and emotional problems and depressive symptoms decreased, while general functioning improved significantly during puberty suppression. Feelings of anxiety and anger did not change between T0 and T1. While changes over time were equal for both sexes, compared with natal males, natal females were older when they started puberty suppression and showed more problem behavior at both T0 and T1. Gender dysphoria and body satisfaction did not change between T0 and T1. No adolescent withdrew from puberty suppression, and all started cross-sex hormone treatment, the first step of actual gender reassignment. CONCLUSION Puberty suppression may be considered a valuable contribution in the clinical management of gender dysphoria in adolescents.


Journal of Homosexuality | 2012

Clinical Management of Gender Dysphoria in Children and Adolescents: The Dutch Approach

Annelou L. C. de Vries; Peggy T. Cohen-Kettenis

The Dutch approach on clinical management of both prepubertal children under the age of 12 and adolescents starting at age 12 with gender dysphoria, starts with a thorough assessment of any vulnerable aspects of the youths functioning or circumstances and, when necessary, appropriate intervention. In children with gender dysphoria only, the general recommendation is watchful waiting and carefully observing how gender dysphoria develops in the first stages of puberty. Gender dysphoric adolescents can be considered eligible for puberty suppression and subsequent cross-sex hormones when they reach the age of 16 years. Currently, withholding physical medical interventions in these cases seems more harmful to wellbeing in both adolescence and adulthood when compared to cases where physical medical interventions were provided.


The Journal of Sexual Medicine | 2015

Evidence for an altered sex ratio in clinic-referred adolescents with gender dysphoria.

Madison Aitken; Thomas D. Steensma; Ray Blanchard; Doug P. VanderLaan; Hayley Wood; Amanda Fuentes; Cathy Spegg; Lori Wasserman; Megan Ames; C. Lindsay Fitzsimmons; Jonathan H. Leef; Victoria Lishak; Elyse Reim; Anna Takagi; Julia Vinik; Julia Wreford; Peggy T. Cohen-Kettenis; Annelou L. C. de Vries; Baudewijntje P.C. Kreukels; Kenneth J. Zucker

INTRODUCTION The number of adolescents referred to specialized gender identity clinics for gender dysphoria appears to be increasing and there also appears to be a corresponding shift in the sex ratio, from one favoring natal males to one favoring natal females. AIM We conducted two quantitative studies to ascertain whether there has been a recent inversion of the sex ratio of adolescents referred for gender dysphoria. METHODS The sex ratio of adolescents from two specialized gender identity clinics was examined as a function of two cohort periods (2006-2013 vs. prior years). Study 1 was conducted on patients from a clinic in Toronto, and Study 2 was conducted on patients from a clinic in Amsterdam. RESULTS Across both clinics, the total sample size was 748. In both clinics, there was a significant change in the sex ratio of referred adolescents between the two cohort periods: between 2006 and 2013, the sex ratio favored natal females, but in the prior years, the sex ratio favored natal males. In Study 1 from Toronto, there was no corresponding change in the sex ratio of 6,592 adolescents referred for other clinical problems. CONCLUSIONS Sociological and sociocultural explanations are offered to account for this recent inversion in the sex ratio of adolescents with gender dysphoria.


Child and Adolescent Psychiatric Clinics of North America | 2011

Treatment of Adolescents With Gender Dysphoria in the Netherlands

Peggy T. Cohen-Kettenis; Thomas D. Steensma; Annelou L. C. de Vries

In the Netherlands, gender dysphoric adolescents may be eligible for puberty suppression at age 12, subsequent cross-sex hormone treatment at age 16, and gender reassignment surgery at age 18. Initially, a thorough assessment is made of the gender dysphoria and vulnerabilities in functioning or circumstances. Psychological interventions and/or gender reassignment may be offered. Psychological interventions are offered if the adolescent needs to explore gender identity and treatment wishes, suffers from coexisting problems, or needs support and counseling during gender reassignment. Although more studies are necessary, this approach seems to contribute significantly to the well-being of gender dysphoric adolescents.


Journal of Clinical Child and Adolescent Psychology | 2018

Initial Clinical Guidelines for Co-Occurring Autism Spectrum Disorder and Gender Dysphoria or Incongruence in Adolescents

John Strang; Haley Meagher; Lauren Kenworthy; Annelou L. C. de Vries; Edgardo Menvielle; Scott Leibowitz; Aron Janssen; Peggy T. Cohen-Kettenis; Daniel E. Shumer; Laura Edwards-Leeper; Richard R. Pleak; Norman P. Spack; Dan H. Karasic; Herbert Schreier; Anouk Balleur; Amy C. Tishelman; Diane Ehrensaft; Leslie A. Rodnan; Emily S. Kuschner; Francie H. Mandel; Antonia Caretto; Hal C. Lewis; Laura Gutermuth Anthony

Evidence indicates an overrepresentation of youth with co-occurring autism spectrum disorders (ASD) and gender dysphoria (GD). The clinical assessment and treatment of adolescents with this co-occurrence is often complex, related to the developmental aspects of ASD. There are no guidelines for clinical care when ASD and GD co-occur; however, there are clinicians and researchers experienced in this co-occurrence. This study develops initial clinical consensus guidelines for the assessment and care of adolescents with co-occurring ASD and GD, from the best clinical practices of current experts in the field. Expert participants were identified through a comprehensive international search process and invited to participate in a two-stage Delphi procedure to form clinical consensus statements. The Delphi Method is a well-studied research methodology for obtaining consensus among experts to define appropriate clinical care. Of 30 potential experts identified, 22 met criteria as expert in co-occurring ASD and GD youth and participated. Textual data divided into the following data nodes: guidelines for assessment; guidelines for treatment; six primary clinical/psychosocial challenges: social functioning, medical treatments and medical safety, risk of victimization/safety, school, and transition to adulthood issues (i.e., employment and romantic relationships). With a cutoff of 75% consensus for inclusion, identified experts produced a set of initial guidelines for clinical care. Primary themes include the importance of assessment for GD in ASD, and vice versa, as well as an extended diagnostic period, often with overlap/blurring of treatment and assessment.


International Review of Psychiatry | 2016

Gender Dysphoria and Gender Incongruence: An evolving inter-disciplinary field.

Walter Pierre Bouman; Annelou L. C. de Vries; Guy T’Sjoen

The number of people with gender dysphoria and gender incongruence who seek assessment, support and treatment at gender identity clinic services has increased substantially over the years in Europe...


International Journal of Transgenderism | 2009

Review of World Professional Association for Transgender Health's Standards of Care for Children and Adolescents with Gender Identity Disorder: A Need for Change?

Annelou L. C. de Vries; Peggy T. Cohen-Kettenis

ABSTRACT With the upcoming seventh edition of the Standards of Care (SOC), this article addresses various relevant aspects of the assessment and treatment of gender-dysphoric children and adolescents. In this article, the recently published literature on the phenomenology, the diagnostic process, and the psychological, social, and physical treatment options are reviewed. On the basis of the existing literature, no major changes are warranted. Recommendations for adjustments concern (1) the acknowledgement that childhood GID and adolescent GID are related, but not entirely similar, phenomena; (2) a more precise indication of which areas of functioning should be explored during the diagnostic phase; (3) an elaboration on the informed consent procedure; (4) the distinction between the purposes of the GnRH analogues and cross-sex hormone use (diagnostic versus treatment); (5) complete social gender changes long before puberty; and (6) monitoring the physical development during pubertal suppression.


PLOS ONE | 2016

Gender Incongruence of Adolescence and Adulthood: Acceptability and Clinical Utility of the World Health Organization's Proposed ICD-11 Criteria.

Titia F. Beek; Peggy T. Cohen-Kettenis; Walter Pierre Bouman; Annelou L. C. de Vries; Thomas D. Steensma; Gemma L. Witcomb; Jon Arcelus; Christina Richards; Els Elaut; Baudewijntje P.C. Kreukels

The World Health Organization (WHO) is currently updating the tenth version of their diagnostic tool, the International Classification of Diseases (ICD, WHO, 1992). Changes have been proposed for the diagnosis of Transsexualism (ICD-10) with regard to terminology, placement and content. The aim of this study was to gather the opinions of transgender individuals (and their relatives/partners) and clinicians in the Netherlands, Flanders (Belgium) and the United Kingdom regarding the proposed changes and the clinical applicability and utility of the ICD-11 criteria of ‘Gender Incongruence of Adolescence and Adulthood’ (GIAA). A total of 628 participants were included in the study: 284 from the Netherlands (45.2%), 8 from Flanders (Belgium) (1.3%), and 336 (53.5%) from the UK. Most participants were transgender people (or their partners/relatives) (n = 522), 89 participants were healthcare providers (HCPs) and 17 were both healthcare providers and (partners/relatives of) transgender people. Participants completed an online survey developed for this study. Most participants were in favor of the proposed diagnostic term of ‘Gender Incongruence’ and thought that this was an improvement on the ICD-10 diagnostic term of ‘Transsexualism’. Placement in a separate chapter dealing with Sexual- and Gender-related Health or as a Z-code was preferred by many and only a small number of participants stated that this diagnosis should be excluded from the ICD-11. In the UK, most transgender participants thought there should be a diagnosis related to being trans. However, if it were to be removed from the chapter on “psychiatric disorders”, many transgender respondents indicated that they would prefer it to be removed from the ICD in its entirety. There were no large differences between the responses of the transgender participants (or their partners and relatives) and HCPs. HCPs were generally positive about the GIAA diagnosis; most thought the diagnosis was clearly defined and easy to use in their practice or work. The duration of gender incongruence (several months) was seen by many as too short and required a clearer definition. If the new diagnostic term of GIAA is retained, it should not be stigmatizing to individuals. Moving this diagnosis away from the mental and behavioral chapter was generally supported. Access to healthcare was one area where retaining a diagnosis seemed to be of benefit.


Journal of Autism and Developmental Disorders | 2018

Autistic Symptoms in Children and Adolescents with Gender Dysphoria

Anna I.R. van der Miesen; Annelou L. C. de Vries; Thomas D. Steensma; Catharina A. Hartman

Studies have shown an increase of symptoms of autism spectrum disorder (ASD) in gender dysphoria (GD). Various hypotheses try to explain this possible co-occurrence (e.g., a role of resistance to change, stereotyped behaviors or prenatal testosterone exposure). This study examined ASD symptoms with the Children’s Social Behavior Questionnaire (CSBQ) in 490 children with GD compared to 2507 typically developing (TD) and 196 children with ASD. CSBQ total scores of the GD sample were in between scores from the TD and ASD sample. The GD sample showed elevated levels of autistic symptomatology on all subdomains, not only on stereotyped and resistance to change. Further, no gender differences and interaction effects were found on the total CSBQ, making a sole role for prenatal testosterone unlikely.

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Thomas D. Steensma

VU University Medical Center

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Doug P. VanderLaan

Centre for Addiction and Mental Health

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Kenneth J. Zucker

Centre for Addiction and Mental Health

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Annelou de Vries

VU University Medical Center

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Anouk Balleur

VU University Medical Center

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