Introduction
A nascent body of research suggests that transgender, non-binary and intersex people bear a disproportionate cancer burden relative to cisgender people, though much of this research is made up of case studies and anecdotal evidence; some population cancer statistics fail to include these populations.1–8 Box 1 includes definitions of relevant terms modified from prior literature.9 Disparities in cancer incidence may be attributable in part to persistent and ubiquitous social inequity—a constellation of social structures and pressures that exclude and marginalise transgender, non-binary and intersex people from adequate healthcare and undermine healthy behaviours.3 These inequities manifest specifically as egregious barriers to quality healthcare, including discrimination, low insurance coverage, a lack of trained providers, insufficient research evidence and outright refusals of care or even assault.2 4–6
Terms and definitions*
Transgender is a broad term that describes a person whose gender identity (eg, man, non-binary, woman) differs from the gender commonly associated with the sex they were assigned at birth (ie, female, intersex, male).
Non-binary describes gender identities that are not limited to man or woman—they could be a combination of both or neither. Some individuals who identify as non-binary and/or gender expansive may identify as transgender as well, and some may not.
Intersex describes someone who identifies as intersex who has ‘natural variations in sex characteristics that do not seem to fit typical binary notions of male or female bodies’ (InterAct Advocates for Intersex Youth and Lamda Legal, 2018).
Cisgender describes someone who identifies with the gender assumed to be associated with their sex assigned at birth (eg, someone who identifies as a man and was assigned male at birth would be a cisgender man).
Endosex describes someone whose sex characteristics (hormones, anatomy, etc) from birth fit the normative medical definitions of male and female bodies.
*Unless otherwise noted, these definitions are modified definitions from prior literature.9
Systemic inequities may also drive lower levels of cancer screening among transgender people compared with cisgender people. Studies have documented lower odds of transgender patients receiving relevant cancer screenings for their bodies compared with cisgender individuals: results indicate 21%–70% lower odds of receiving relevant screenings for a range of screening types, including colonoscopy, mammography and pap smears.1 2 10 11 Lower screening could reflect numerous gaps in care provision, including misclassification of patient eligibility for certain cancer screening protocols. For example, misclassification may stem from screening protocols that fail to consider or integrate gender-affirming hormone use or that include assumptions about anatomy, particularly when rooted in the gender binary.2 6 12–15 Indeed, the American Cancer Society’s recommendations on cancer screening are based on age and binary gender categories of ‘men’ and ‘women’.16 On the other hand, the National Comprehensive Cancer Network (NCCN) guidelines for breast screening acknowledge the difference between sex and gender, stating that: ‘NCCN recommendations have been developed to be inclusive of individuals of all sexual and gender identities to the greatest extent possible. On this page the terms males and females refer to sex assigned at birth’.17 A comparison of screening guidelines from major US cancer organisations can be found in table 1.
However, comprehensive research, guidelines and policies for cancer screening that meaningfully include and care for transgender, non-binary and intersex people are lacking. Furthermore, the effects of these failures of current screening protocols may be compounded by lack of provider knowledge of cancer risk for transgender, non-binary and intersex patients.18 These failures in screening hold epidemiological implications as earlier detection of cancer has been linked to improved care, chance of survival and quality of life, and lower treatment morbidity than later diagnosis.19
Given this evidence of failures of cancer screening for transgender, non-binary and intersex populations, we set out to elicit community-generated solutions to modifiable aspects of cancer screening processes. We conducted six focus group discussions (FGDs) to understand if and how the routine clinical intake process can be modified to improve appropriate cancer screening for transgender, non-binary and intersex people, and thus improve health outcomes for these populations.