Teddy Cook
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Teddy Cook has a total of 49 co-authors. Here are the top co-authors by number of shared publications:
- Ada S. Cheung
Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Australia
3 shared publications - Martin Holt
Centre for Social Research in Health, UNSW Sydney, Sydney, Australia
3 shared publications - Sav Zwickl
Trans Health Research Group, Department of Medicine, The University of Melbourne
3 shared publications - Alex Fang Qi Wong
Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne
2 shared publications - Chloe Parton
School of Health, Victoria University of Wellington
2 shared publications Christopher Dietzel
2 shared publications
Latest Publications
- 18 May 2026
- Published by Taylor & Francis
- p. 81-107
Gender euphoria or disruption of gender affirmation
- 18 May 2026
- Published by Taylor & Francis
- p. 81-107
Gender euphoria or disruption of gender affirmation
- Open Access
- 15 October 2024
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 27 (2) , 708-718
Language and terminology to describe transgender communities; Perspectives from people with lived experience
There is no consensus over the meaning of “transgender,” “trans and gender diverse,” and other terminology used to describe people with a gender different from the gender presumed or recorded for them at birth. We aimed to survey transgender (trans) individuals to understand lived experience perspectives on terminology. An online cross-sectional survey of trans people currently living in Australia and aged ≥16 was conducted from June 2021 to April 2022. Demographic data and terminology preferences were ascertained through fixed-option and free-text questions. Of 1023 respondents with a median age of 30 years (IQR 24, 41), 37.1% were trans women, 34.9% were trans men, 27.6% were non-binary, and 0.4% had a culturally specific identity. There was no consensus regarding community-level terminology, with “trans/transgender and gender diverse” the most preferred term (21.9%), followed by “trans/transgender” (19.3%), and “gender diverse” (15.1%). The term “trans/transgender” was more preferred by trans women (27.9%), trans men (19.0%), respondents who had a history of or wanted gender-affirming hormone therapy (GAHT; 20.7%), and gender-affirming surgery (GAS; 20.9%), compared to non-binary respondents (8.2%), and respondents who did not want GAHT (4.9%) or GAS (13.9%). Three themes emerged from free-text responses regarding term preference: (1) Inclusivity, (2) Trans as a binary and medicalized experience, and (3) Societal understanding, accessibility, and destigmatization. From Australian trans communities’ perspectives, the term “trans/transgender and gender diverse” was the most preferred community-level terminology to collectively describe people with a gender different from the gender presumed or recorded for them at birth. Further perspectives are needed from other cohorts internationally.
- 15 October 2024
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 27 (2) , 708-718
Open AccessLanguage and terminology to describe transgender communities; Perspectives from people with lived experience
There is no consensus over the meaning of “transgender,” “trans and gender diverse,” and other terminology used to describe people with a gender different from the gender presumed or recorded for them at birth. We aimed to survey transgender (trans) individuals to understand lived experience perspectives on terminology. An online cross-sectional survey of trans people currently living in Australia and aged ≥16 was conducted from June 2021 to April 2022. Demographic data and terminology preferences were ascertained through fixed-option and free-text questions. Of 1023 respondents with a median age of 30 years (IQR 24, 41), 37.1% were trans women, 34.9% were trans men, 27.6% were non-binary, and 0.4% had a culturally specific identity. There was no consensus regarding community-level terminology, with “trans/transgender and gender diverse” the most preferred term (21.9%), followed by “trans/transgender” (19.3%), and “gender diverse” (15.1%). The term “trans/transgender” was more preferred by trans women (27.9%), trans men (19.0%), respondents who had a history of or wanted gender-affirming hormone therapy (GAHT; 20.7%), and gender-affirming surgery (GAS; 20.9%), compared to non-binary respondents (8.2%), and respondents who did not want GAHT (4.9%) or GAS (13.9%). Three themes emerged from free-text responses regarding term preference: (1) Inclusivity, (2) Trans as a binary and medicalized experience, and (3) Societal understanding, accessibility, and destigmatization. From Australian trans communities’ perspectives, the term “trans/transgender and gender diverse” was the most preferred community-level terminology to collectively describe people with a gender different from the gender presumed or recorded for them at birth. Further perspectives are needed from other cohorts internationally.
- Open Access
- 17 September 2024
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 27 (2) , 662-673
Persistent menstruation in transgender people using testosterone gender-affirming hormone therapy
The cessation of menstruation is a common and desired outcome of testosterone gender-affirming hormone therapy (GAHT), for trans and gender diverse (collectively referred to as trans) individuals recorded female at birth. This study aimed to (a) assess the prevalence and characteristics of menstruation before and after commencing testosterone GAHT, and (b) explore factors associated with persistent menstruation. Trans people using testosterone therapy for gender affirmation, aged ≥16 years and living in Australia completed an online cross-sectional survey between 28 August to 31 December 2020. Multivariable logistic regression analysis was applied to estimate the effect size of factors potentially contributing to the cessation or persistence of menstruation 6 months after starting testosterone therapy. There were 401 eligible respondents. Median age for commencement of testosterone GAHT was 23 years (IQR = 20, 28) and the median duration of testosterone therapy was 37 months (IQR = 19, 65). Intramuscular testosterone undecanoate injections were the most used formulation. Persistent menstruation >6 months after commencing testosterone GAHT was reported by 87 (22.8%) participants. The odds of reporting persistent menstruation >6 months after commencing testosterone were (a) higher in people using testosterone gels/creams compared to testosterone injections (OR = 11.3 [1.1, 118.2]), and (b) lower in individuals with a body mass index ≥30 kg/m2 versus 6 months after commencing testosterone and (a) menstrual regularity prior to commencing testosterone GAHT, and (b) age at commencement of treatment. Persistent menstruation >6 months after commencing testosterone GAHT may be impacted by body mass index and the mode of testosterone administration. This is important information for individuals considering testosterone GAHT as well as for clinicians advising on the benefits and drawbacks of different forms of testosterone administration as well as the likelihood of menstrual cessation.
- 17 September 2024
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 27 (2) , 662-673
Open AccessPersistent menstruation in transgender people using testosterone gender-affirming hormone therapy
The cessation of menstruation is a common and desired outcome of testosterone gender-affirming hormone therapy (GAHT), for trans and gender diverse (collectively referred to as trans) individuals recorded female at birth. This study aimed to (a) assess the prevalence and characteristics of menstruation before and after commencing testosterone GAHT, and (b) explore factors associated with persistent menstruation. Trans people using testosterone therapy for gender affirmation, aged ≥16 years and living in Australia completed an online cross-sectional survey between 28 August to 31 December 2020. Multivariable logistic regression analysis was applied to estimate the effect size of factors potentially contributing to the cessation or persistence of menstruation 6 months after starting testosterone therapy. There were 401 eligible respondents. Median age for commencement of testosterone GAHT was 23 years (IQR = 20, 28) and the median duration of testosterone therapy was 37 months (IQR = 19, 65). Intramuscular testosterone undecanoate injections were the most used formulation. Persistent menstruation >6 months after commencing testosterone GAHT was reported by 87 (22.8%) participants. The odds of reporting persistent menstruation >6 months after commencing testosterone were (a) higher in people using testosterone gels/creams compared to testosterone injections (OR = 11.3 [1.1, 118.2]), and (b) lower in individuals with a body mass index ≥30 kg/m2 versus 6 months after commencing testosterone and (a) menstrual regularity prior to commencing testosterone GAHT, and (b) age at commencement of treatment. Persistent menstruation >6 months after commencing testosterone GAHT may be impacted by body mass index and the mode of testosterone administration. This is important information for individuals considering testosterone GAHT as well as for clinicians advising on the benefits and drawbacks of different forms of testosterone administration as well as the likelihood of menstrual cessation.
- 13 February 2024
- Published by Taylor & Francis
- p. 72-86
Not your unicorn: trans dating app users' negotiations of personal safety and sexual health
- 13 February 2024
- Published by Taylor & Francis
- p. 72-86
Not your unicorn: trans dating app users' negotiations of personal safety and sexual health
- Open Access
- 6 February 2023
- Published by Springer Nature in Sexuality Research and Social Policy
- Vol. 20 (3) , 1220-1231
Engaging Stigmatised Communities in Australia with Digital Health Systems: Towards Data Justice in Public Health
Introduction: In 2018, following government policy changes to Australia’s national electronic health record system, ‘My Health Record’, consumer advocates—including organisations representing people living with HIV, people who use drugs and sex workers—raised concerns about privacy and data security. Responding to these controversies, this study explores the practical, ethical and political complexities of engaging stigmatised communities with digital health systems. Methods: We conducted 16 qualitative semi-structured interviews in 2020 with key informants representing communities who experience stigma, discrimination and marginalisation in Australia. These communities included people living with HIV, sex workers, people who inject drugs, gay and bisexual men and transgender and gender diverse people. We conducted a reflexive thematic analysis. Results: Key informants were sceptical of proposed benefits of electronic health records for their communities, and concerned about privacy risks and the potential for discrimination. Meaningful consultation, consent mechanisms and tackling structural stigma were raised as solutions for engaging communities. Conclusions: Although communities could benefit from being included in digital health systems, significant cultural, legal and social reforms from government were believed to be necessary to build trust in digital health systems. We argue that these forms of data justice are necessary for effective future systems. Policy Implications: Engaging stigmatised communities—including in relation to gender, sexuality, sex work, drug use, HIV—requires a commitment to data justice. The design and implementation of digital health systems requires investment in ongoing and meaningful consultation with communities and representative organisations.
- 6 February 2023
- Published by Springer Nature in Sexuality Research and Social Policy
- Vol. 20 (3) , 1220-1231
Open AccessEngaging Stigmatised Communities in Australia with Digital Health Systems: Towards Data Justice in Public Health
Introduction: In 2018, following government policy changes to Australia’s national electronic health record system, ‘My Health Record’, consumer advocates—including organisations representing people living with HIV, people who use drugs and sex workers—raised concerns about privacy and data security. Responding to these controversies, this study explores the practical, ethical and political complexities of engaging stigmatised communities with digital health systems. Methods: We conducted 16 qualitative semi-structured interviews in 2020 with key informants representing communities who experience stigma, discrimination and marginalisation in Australia. These communities included people living with HIV, sex workers, people who inject drugs, gay and bisexual men and transgender and gender diverse people. We conducted a reflexive thematic analysis. Results: Key informants were sceptical of proposed benefits of electronic health records for their communities, and concerned about privacy risks and the potential for discrimination. Meaningful consultation, consent mechanisms and tackling structural stigma were raised as solutions for engaging communities. Conclusions: Although communities could benefit from being included in digital health systems, significant cultural, legal and social reforms from government were believed to be necessary to build trust in digital health systems. We argue that these forms of data justice are necessary for effective future systems. Policy Implications: Engaging stigmatised communities—including in relation to gender, sexuality, sex work, drug use, HIV—requires a commitment to data justice. The design and implementation of digital health systems requires investment in ongoing and meaningful consultation with communities and representative organisations.
- Open Access
- 23 January 2023
- Published by Springer Nature in Archives of Sexual Behavior
- Vol. 52 (3) , 901-920
Reinforcing or Disrupting Gender Affirmation: The Impact of Cancer on Transgender Embodiment and Identity
There is a pressing need for greater understanding and focus on cancer survivorship and informal cancer caring of trans people (binary and non-binary), across tumor types, to inform culturally safe trans inclusive cancer information and care. This qualitative study, part of the mixed methods Out with Cancer project, examined experiences of trans embodiment and identity after cancer diagnosis and treatment. We drew on open-ended survey responses from 63 trans cancer survivors and 23 trans cancer carers, as well as interviews and a photo-elicitation activity with a subset of 22 participants (15 cancer survivors, 7 cancer carers). Reflexive thematic analysis identified three themes: Cancer enhances trans embodiment, through experiences of gender euphoria following cancer treatment, and acceleration of decisions about gender affirmation; cancer erases or inhibits gender affirmation; trans embodiment is invisible or pathologized in cancer care. These findings demonstrate that trans embodiment and identity, as well as the process of gender affirmation, may be disrupted by cancer or informal cancer caring. Conversely, cancer and cancer treatment can positively impact the embodied identity and lives of trans people, despite the anxiety and strain of negotiating medical procedures. However, if healthcare professionals operate within a cis-heteronormative framework and do not understand the meaning of embodied change following cancer treatment for trans individuals, these positive benefits may not be realized.
- 23 January 2023
- Published by Springer Nature in Archives of Sexual Behavior
- Vol. 52 (3) , 901-920
Open AccessReinforcing or Disrupting Gender Affirmation: The Impact of Cancer on Transgender Embodiment and Identity
There is a pressing need for greater understanding and focus on cancer survivorship and informal cancer caring of trans people (binary and non-binary), across tumor types, to inform culturally safe trans inclusive cancer information and care. This qualitative study, part of the mixed methods Out with Cancer project, examined experiences of trans embodiment and identity after cancer diagnosis and treatment. We drew on open-ended survey responses from 63 trans cancer survivors and 23 trans cancer carers, as well as interviews and a photo-elicitation activity with a subset of 22 participants (15 cancer survivors, 7 cancer carers). Reflexive thematic analysis identified three themes: Cancer enhances trans embodiment, through experiences of gender euphoria following cancer treatment, and acceleration of decisions about gender affirmation; cancer erases or inhibits gender affirmation; trans embodiment is invisible or pathologized in cancer care. These findings demonstrate that trans embodiment and identity, as well as the process of gender affirmation, may be disrupted by cancer or informal cancer caring. Conversely, cancer and cancer treatment can positively impact the embodied identity and lives of trans people, despite the anxiety and strain of negotiating medical procedures. However, if healthcare professionals operate within a cis-heteronormative framework and do not understand the meaning of embodied change following cancer treatment for trans individuals, these positive benefits may not be realized.
- 5 January 2022
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 24 (1) , 38-48
Sexual experience, relationships, and factors associated with sexual and romantic satisfaction in the first Australian Trans & Gender Diverse Sexual Health Survey
Background: Sexual and romantic satisfaction are important aspects of sexual health and wellbeing, but they have not been thoroughly investigated among transgender and gender diverse (‘trans’) people in Australia. Aims: To address this gap and improve sexual health and wellbeing, we assessed the sexual behavior and relationships of a national sample of trans people in Australia, and factors associated with sexual and romantic satisfaction. Methods: We conducted a national survey of trans people from Australia in October-November 2018. Results: The sample included 1,613 trans participants, of whom 353 (21.9%) were men, 397 (24.6%) were women and 863 (53.5%) were non-binary. Over 70% of the sample had been sexually active in the previous year, and 56.9% were in a relationship, but only 32.4% were satisfied with the sexual aspects and 47.1% with the romantic aspects of their lives. Sexual satisfaction was associated with younger age, being asexual, having more trans friends, more frequent sex, and using illicit drugs in the context of sexual activity. Anxiety or fear about sex was associated with less sexual satisfaction, as was being in an open relationship. Romantic satisfaction was associated with younger age, having non-binary partners, and being in a current relationship (particularly a monogamous one). Recent distress, anxiety, or fear about sex were associated with less romantic satisfaction. Conclusion: Participants reported a broad range of sexual relationships, but low levels of satisfaction with the sexual and romantic aspects of their lives. The findings underscore the importance of supportive partners, access to social support and peer networks of trans people, as well as access to mental health support and sex-positive, trans affirming counseling in sexual health services.
- 5 January 2022
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 24 (1) , 38-48
Sexual experience, relationships, and factors associated with sexual and romantic satisfaction in the first Australian Trans & Gender Diverse Sexual Health Survey
Background: Sexual and romantic satisfaction are important aspects of sexual health and wellbeing, but they have not been thoroughly investigated among transgender and gender diverse (‘trans’) people in Australia. Aims: To address this gap and improve sexual health and wellbeing, we assessed the sexual behavior and relationships of a national sample of trans people in Australia, and factors associated with sexual and romantic satisfaction. Methods: We conducted a national survey of trans people from Australia in October-November 2018. Results: The sample included 1,613 trans participants, of whom 353 (21.9%) were men, 397 (24.6%) were women and 863 (53.5%) were non-binary. Over 70% of the sample had been sexually active in the previous year, and 56.9% were in a relationship, but only 32.4% were satisfied with the sexual aspects and 47.1% with the romantic aspects of their lives. Sexual satisfaction was associated with younger age, being asexual, having more trans friends, more frequent sex, and using illicit drugs in the context of sexual activity. Anxiety or fear about sex was associated with less sexual satisfaction, as was being in an open relationship. Romantic satisfaction was associated with younger age, having non-binary partners, and being in a current relationship (particularly a monogamous one). Recent distress, anxiety, or fear about sex were associated with less romantic satisfaction. Conclusion: Participants reported a broad range of sexual relationships, but low levels of satisfaction with the sexual and romantic aspects of their lives. The findings underscore the importance of supportive partners, access to social support and peer networks of trans people, as well as access to mental health support and sex-positive, trans affirming counseling in sexual health services.
- Open Access
- 21 July 2021
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 16 (7) , e0253589
Cisgenderism and transphobia in sexual health care and associations with testing for HIV and other sexually transmitted infections: Findings from the Australian Trans & Gender Diverse Sexual Health Survey
Transgender and gender diverse people have unique risks and needs in the context of sexual health, but little is known about sexual health care for this population. In 2018, a national, online survey of sexual health and well-being was conducted with trans and gender diverse people in Australia (n = 1,613). Data from this survey were analysed to describe uptake of sexual health care and experiences of interpersonal and structural cisgenderism and transphobia. Experiences of cisgenderism and transphobia in sexual health care were assessed using a new, four-item scale of ‘gender insensitivity’, which produced scores ranging from 0 (highly gender sensitive) to 4 (highly gender insensitive). Logistic and linear regression analyses were conducted to determine if experiences of gender insensitivity in sexual health care were associated with uptake and frequency of HIV/STI testing in the 12 months prior to participation. Trans and gender diverse participants primarily accessed sexual health care from general practice clinics (86.8%), followed by publicly funded sexual health clinics (45.6%), community-based services (22.3%), and general hospitals (14.9%). Experiences of gender insensitivity were common overall (73.2% of participants reported ≥2 negative experiences) but most common in hospitals (M = 2.9, SD = 1.3) and least common in community-based services (M = 1.3, SD = 1.4; p<0.001). When controlling for sociodemographic factors, social networks, general access to health care, and sexual practices, higher levels of gender insensitivity in previous sexual health care encounters were associated with a lower likelihood of recent HIV/STI testing (adjusted prevalence ratio = 0.92, 95% confidence interval [CI]:091,0.96, p<0.001) and less-frequent HIV/STI testing (B = -0.07, 95%CI:-0.10,-0.03, p = 0.007). Given the high rates of HIV and other STIs among trans and gender diverse people in Australia and overseas, eliminating cisgenderism and transphobia in sexual health care may help improve access to diagnostic testing to reduce infection rates and support the overall sexual health and well-being of these populations.
- 21 July 2021
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 16 (7) , e0253589
Open AccessCisgenderism and transphobia in sexual health care and associations with testing for HIV and other sexually transmitted infections: Findings from the Australian Trans & Gender Diverse Sexual Health Survey
Transgender and gender diverse people have unique risks and needs in the context of sexual health, but little is known about sexual health care for this population. In 2018, a national, online survey of sexual health and well-being was conducted with trans and gender diverse people in Australia (n = 1,613). Data from this survey were analysed to describe uptake of sexual health care and experiences of interpersonal and structural cisgenderism and transphobia. Experiences of cisgenderism and transphobia in sexual health care were assessed using a new, four-item scale of ‘gender insensitivity’, which produced scores ranging from 0 (highly gender sensitive) to 4 (highly gender insensitive). Logistic and linear regression analyses were conducted to determine if experiences of gender insensitivity in sexual health care were associated with uptake and frequency of HIV/STI testing in the 12 months prior to participation. Trans and gender diverse participants primarily accessed sexual health care from general practice clinics (86.8%), followed by publicly funded sexual health clinics (45.6%), community-based services (22.3%), and general hospitals (14.9%). Experiences of gender insensitivity were common overall (73.2% of participants reported ≥2 negative experiences) but most common in hospitals (M = 2.9, SD = 1.3) and least common in community-based services (M = 1.3, SD = 1.4; p<0.001). When controlling for sociodemographic factors, social networks, general access to health care, and sexual practices, higher levels of gender insensitivity in previous sexual health care encounters were associated with a lower likelihood of recent HIV/STI testing (adjusted prevalence ratio = 0.92, 95% confidence interval [CI]:091,0.96, p<0.001) and less-frequent HIV/STI testing (B = -0.07, 95%CI:-0.10,-0.03, p = 0.007). Given the high rates of HIV and other STIs among trans and gender diverse people in Australia and overseas, eliminating cisgenderism and transphobia in sexual health care may help improve access to diagnostic testing to reduce infection rates and support the overall sexual health and well-being of these populations.
- Open Access
- 11 March 2021
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 24 (3) , 281-291
The impact of the first three months of the COVID-19 pandemic on the Australian trans community
Trans and gender diverse individuals (people who identify with a gender different to what was presumed for them at birth) are one of the most medically and socially marginalized groups in our commu...
- 11 March 2021
- Published by Taylor & Francis in International Journal of Transgender Health
- Vol. 24 (3) , 281-291
Open AccessThe impact of the first three months of the COVID-19 pandemic on the Australian trans community
Trans and gender diverse individuals (people who identify with a gender different to what was presumed for them at birth) are one of the most medically and socially marginalized groups in our commu...
- 22 November 2020
- Published by Taylor & Francis in Health Sociology Review
- Vol. 30 (1) , 72-86
Not your unicorn: trans dating app users’ negotiations of personal safety and sexual health
This article reflects on 14 Australian trans dating app users’ accounts of feeling safer (and less safe) when using apps, as well as their experiences of sexual healthcare. We explore both app use and healthcare in the context of the interdisciplinary field of ‘digital intimacies’, considering the ways that digital technologies and cultures of technological use both shape and are shaped by broader professional and cultural norms relating to sexuality and gender. Drawing on Preciado’s [(2013). Testo junkie: Sex, drugs and biopolitics in the pharmacopornographic era. The Feminist Press] framework of ‘pharmacopornographisation’, the analysis aims to contextualise participants’ experiences of being ‘seen’ and ‘known’ by health professionals and other app users. Our findings indicate that both dating apps and sexual health services rely on reductive systems of sorting and categorisation that reinforce binary understandings of genders and sexualities in order to facilitate data management and information sharing practices. Yet these same sorting and filtering technologies can also help trans app users avoid harassment, form intimate connections and seek appropriate healthcare.
- 22 November 2020
- Published by Taylor & Francis in Health Sociology Review
- Vol. 30 (1) , 72-86
Not your unicorn: trans dating app users’ negotiations of personal safety and sexual health
This article reflects on 14 Australian trans dating app users’ accounts of feeling safer (and less safe) when using apps, as well as their experiences of sexual healthcare. We explore both app use and healthcare in the context of the interdisciplinary field of ‘digital intimacies’, considering the ways that digital technologies and cultures of technological use both shape and are shaped by broader professional and cultural norms relating to sexuality and gender. Drawing on Preciado’s [(2013). Testo junkie: Sex, drugs and biopolitics in the pharmacopornographic era. The Feminist Press] framework of ‘pharmacopornographisation’, the analysis aims to contextualise participants’ experiences of being ‘seen’ and ‘known’ by health professionals and other app users. Our findings indicate that both dating apps and sexual health services rely on reductive systems of sorting and categorisation that reinforce binary understandings of genders and sexualities in order to facilitate data management and information sharing practices. Yet these same sorting and filtering technologies can also help trans app users avoid harassment, form intimate connections and seek appropriate healthcare.