Marco Hidalgo

Dr. Marco Hidalgo


Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2019 in Clinical Practice in Pediatric Psychology
Verified
Journal Article
Closed access
MHMarco Hidalgo
Marco Hidalgo
HPHanno Petras
Hanno Petras
DCDiane Chen
Diane Chen
GCGia Chodzen
Gia Chodzen
Objective: Minority stress contributes to several physical and psychological problems in sexual and gender minorities but is largely understudied in transgender/gender-nonconforming (TGNC) individuals, particularly TGNC adolescents. The availability of psychometrically sound measures of adolescent minority stress can help improve assessment and treatment planning in this area. This original research study examined whether an existing measure of TGNC-related minority stress and resilience among adults could retain construct and psychometric validity when administered to TGNC adolescents. Method: Respondents were 258 TGNC adolescents, aged 12 to 17.99 years ( M = 15.1, SD = 1.4), majority White/European American (70.2%) and assigned female at birth (71.7%) seeking care in an interdisciplinary gender-health clinic within a pediatric academic medical center in the Midwestern United States. Respondents completed a battery of clinical measures as standard of care, including the Gender Minority Stress and Resilience (GMSR) measure, measures of anxiety and depressive symptoms, and parental support. Results: Findings indicated that minor adaptation of the existing adult measure resulted in high internal consistency and construct validity across 9 subscales assessing domains of minority stress and resilience in this sample of TGNC adolescents. Conclusions: This study provides evidence of the factor structure, reliability, and validity of an adolescent extension of the GMSR (i.e., GMSR-A). These findings demonstrate the clinical utility of the GMSR-A, a tool that can help increase understanding of minority stress and resilience phenomena experienced by TGNC adolescents. Implications for Impact Statement: The findings from this research study show that mental health clinicians can adequately assess gender minority stress and resilience among transgender/gender-nonconforming (TGNC) adolescents by using a slightly modified version of an existing measure originally created for TGNC adults.

13 February 2019 in Journal of Family Issues
Verified
Journal Article
Closed access
PDF file
MHMarco Hidalgo
Marco Hidalgo
DCDiane Chen
Diane Chen
Per minority stress theory, sexual and gender minorities are susceptible to bias-related social stressors that can internalize and increase their susceptibility to poor physical and mental health. Parents of transgender/gender-expansive (TGE) children may also encounter a number of stressors on account of their child’s gender experience. No known research had examined how these stressors align within a minority stress framework. This qualitative study examined and characterized minority stress phenomena in a clinically derived sample of English-speaking, cisgender parents of TGE children aged ≤11 years. Study findings included reports of distal and proximal forms of minority stress, with notable impact on health and well-being. Researchers highlight treatment implications and suggest studies continue to examine minority stress in parents of TGE children.

9 July 2019 in JMIR Research Protocols
Verified
Journal Article
Open access
JOJohanna Olson-Kennedy
Johanna Olson-Kennedy
YCYee-Ming Chan
Yee-Ming Chan
Robert GarofaloRobert Garofalo
Robert Garofalo
NSNorman Spack
Norman Spack
DCDiane Chen
Diane Chen
SRStephen Rosenthal
Stephen Rosenthal
Journal of Medical Internet Research - International Scientific Journal for Medical Research, Information and Communication on the Internet #Preprint #PeerReviewMe: Warning: This is a unreviewed preprint. Readers are warned that the document has not been peer-reviewed by expert/patient reviewers or an academic editor, may contain misleading claims, and is likely to undergo changes before final publication, if accepted, or may have been rejected/withdrawn. Readers with interest and expertise are encouraged to sign up as peer-reviewer, if the paper is within an open peer-review period. Please cite this preprint only for review purposes or for grant applications and CVs (if you are the author). Background: Transgender children and adolescents, those who experience incongruence between assigned sex at birth and internal gender identity, are a poorly understood and understudied population in the United States. Since 2008, medical care for transgender youth has generally followed guidelines developed by professional consensus given the paucity of empirical research, particularly in a U.S. setting. Objective: The objective of this research is to provide evidence-based data to inform clinical care for transgender youth. The study aims to: 1) evaluate the impact of gonadotropin-releasing hormone (GnRH) agonists administered for puberty suppression on mental health, psychological well-being, and metabolic and physiologic parameters including bone health in a cohort of children and adolescents (Tanner stages 2-4) with gender dysphoria, comparing baseline and follow-up assessments; and 2) evaluate the impact of gender-affirming hormones (e.g. estradiol, testosterone, etc.) administered for phenotypic gender transition on mental health, psychological well-being, and metabolic and physiologic parameters in a cohort of adolescents with gender dysphoria, comparing baseline and follow-up assessments. Methods: The study uses a longitudinal observational design to examine the outcomes of existing medical treatment protocols for gender dysphoria in two distinct cohorts: youth initiating puberty suppression and youth pursuing a phenotypic gender transition. Routine anthropometric and physiologic parameters are collected through chart abstraction, questionnaires, and research interviews throughout the 24-month study period. Audio computer-assisted self-interview (ACASI) and individual interview survey instruments are used to collect demographic, mental health, psychosocial, and behavioral data from parents and youth in the blocker cohort and only from youth in the gender-affirming hormone cohort at baseline, 6, 12, 18, and 24 months. Results: Participant recruitment commenced in July 2016 and enrollment was completed in September 2018. Ninety participants were enrolled in the blocker cohort, and 301 participants in the gender affirming hormone cohort. Findings based on baseline data are expected to be submitted for publication in 2019. Results: Participant recruitment commenced in July 2016 and enrollment was completed in September 2018. Ninety participants were enrolled in the blocker cohort, and 301 participants in the gender affirming hormone cohort. Findings based on baseline data are expected to be submitted for publication in 2019. Conclusions: This longitudinal, observational study is collecting critical data on the existing models of care for transgender youth that have been used in clinical settings for close to a decade, though with limited empirical research to support them. This research is a direct response to the Institute of Medicine report calling for such studies, as well as the needs of clinicians and patients. Results from this study have the potential to significantly impact the medical and mental health services provided to transgender youth by making available rigorous scientific evidence describing the impact and safety of early treatment based on sexual development stage. Ultimately, we aim to understand if early medical intervention reduces the health disparities well-known to disproportionately affect transgender individuals across the lifespan.

19 August 2014 in Archives of Sexual Behavior
Verified
Journal Article
Closed access
PDF file
MHMarco Hidalgo
Marco Hidalgo
LKLisa M. Kuhns
Lisa M. Kuhns
AHAnna L. Hotton
Anna L. Hotton
AJAmy Johnson
Amy Johnson
BMBrian Mustanski
Brian Mustanski
Robert GarofaloRobert Garofalo
Robert Garofalo

31 August 2017 in JMIR Research Protocols
Verified
Journal Article
Open access
RSRob Stephenson
Rob Stephenson
NSNicolas A Suarez
Nicolas A Suarez
Robert GarofaloRobert Garofalo
Robert Garofalo
MHMarco Hidalgo
Marco Hidalgo
SHSamuel Hoehnle
Samuel Hoehnle
PSPatrick Sullivan
Patrick Sullivan
An estimated one- to-two-thirds of new human immunodeficiency virus (HIV) infections among US men who have sex with men (MSM) occur within the context of primary partnerships. Despite this fact, there remains a lack of prevention interventions that focus on male sero-discordant dyads. Interventions that provide male couples with skills to manage HIV risk, and to support each other towards active engagement in HIV prevention and care, are urgently needed. The objective of this paper is to describe the protocol for an innovative dyadic intervention (Stronger Together) that combines couples' HIV testing and dyadic adherence counseling to improve treatment adherence and engagement in care among HIV sero-discordant male couples in the United States. The research activities involve a prospective randomized controlled trial (RCT) of approximately 165 venue- and clinic-recruited sero-discordant male couples (330 individuals: 165 HIV sero-negative and 165 HIV sero-positive). Couples randomized into the intervention arm receive couples' HIV counseling and testing plus dyadic adherence counseling, while those randomized to the control arm receive individual HIV counseling and testing. The study takes place in three cities: Atlanta, GA (study site Emory University); Boston, MA (study site The Fenway Institute); and Chicago, IL (study site Ann & Robert H. Lurie Children's Hospital of Chicago). Cohort recruitment began in 2015. Couples are followed prospectively for 24 months, with study assessments at baseline, 6, 12, 18, and 24 months. Stronger Together was launched in August 2014. To date, 160 couples (97% of the target enrollment) have been enrolled and randomized. The average retention rate across the three sites is 95%. Relationship dissolution has been relatively low, with only 13 couples breaking up during the RCT. Of the 13 couples who have broken up, 10 of the 13 HIV-positive partners have been retained in the cohort; none of these HIV-positive partners have enrolled new partners into the RCT. The intervention offers a unique opportunity for sero-discordant couples to support each other towards common HIV management goals by facilitating their development of tailored prevention plans via couples-based HIV testing and counseling, as well as problem-solving skills in Partner Strategies to Enhance Problem-solving Skills (STEPS). ClinicalTrials.gov NCT01772992; https://clinicaltrials.gov/ct2/show/NCT01772992 (Archived by WebCite at http://www.webcitation.org/6szFBVk1R).

25 August 2016 in JMIR Research Protocols
Verified
Journal Article
Open access
ABAngela Robertson Bazzi
Angela Robertson Bazzi
KFKirkpatrick B Fergus
Kirkpatrick B Fergus
RSRob Stephenson
Rob Stephenson
CFCatherine A Finneran
Catherine A Finneran
JCJulia Coffey
Julia Coffey
MMMatthew Mimiaga
Matthew Mimiaga
An estimated one- to two-thirds of new human immunodeficiency virus (HIV) infections among US men who have sex with men (MSM) occur within the context of primary partnerships. Thus, HIV interventions that recognize and harness the power of relationships are needed. Increasingly, HIV prevention efforts are being directed toward improving engagement across the HIV care continuum from testing to linkage to care, antiretroviral therapy (ART) adherence, engagement in care, and viral suppression. However, to our knowledge, no behavioral interventions have attempted to address the HIV care continuum using a dyadic approach. The objective of this paper is to describe the development of and protocol for an innovative couples-based approach to improving treatment adherence and engagement in care among HIV serodiscordant and concordant HIV-positive same sex male couples in the United States. We developed the Partner Steps intervention by drawing from relationship-oriented theory, existing efficacious individual-level ART adherence interventions, couple-focused HIV prevention interventions, and expert consultation. We incorporated new content to address all aspects of the HIV care continuum (eg, linkage to and retention in care) and to draw on relationship strengths through interactive activities. The resulting theory-based Partner Steps intervention is delivered by a trained bachelors-level counselor (interventionist) over 2 in-person sessions with male-male dyads in which at least 1 partner has recent suboptimal engagement in HIV care. Each session is designed to use relationship strengths to increase motivation for HIV care and treatment, and cover sequential intervention "steps" relating to specific challenges in HIV care engagement and barriers to ART adherence. For each step, couples work with a trained interventionist to identify their unique challenges, actively problem-solve with the interventionist, and articulate and commit to working together to implement a plan in which each partner agrees to complete specific tasks. We drew on theory and evidence to develop novel intervention strategies that leverage strengths of relationships to address engagement across the entire HIV care continuum. We provide details on intervention development and content that may be of use to researchers as well as medical and mental health professionals for whom a dyadic approach to HIV prevention and care may best suit their patient population.