What are the effects of ethnicity, sexuality, disability and obesity on the odds of experiencing discrimination among Australian males? A nationwide cross-sectional survey

Objectives The global public health community has been slow to acknowledge the important role of discrimination in health inequality. Existing evidence on discrimination is largely based on studies of specific subpopulations and specific forms of discrimination, with limited evidence from general population samples. We assessed the individual and combined effects of ethnicity, sexuality, disability and obesity on the likelihood of discrimination among a general population sample of Australian males. Design and setting We used data from The Australian Longitudinal Study on Male Health (n=15 988, with response rate of 35%) to estimate the prevalence of self-perceived discrimination within the preceding 2 years and we used binary logistic regression models to assess the individual and combined effects of ethnicity, sexuality, disability and obesity on discrimination. Participants 13 763 adult males were included in this analysis. Results One in five (19.7%) males reported experiencing discrimination in the preceding 2 years. Aboriginal and/or Torres Strait Islander males were nearly three times (OR=2.97, p<0.001) more likely to experience discrimination. Those born in Southern/Eastern Europe, Asia or Africa were at least twice more likely to report discrimination. Homosexual or bisexual males (35.2%; OR=2.23, p=<0.001), men with morbid obesity (29.2%; OR=1.91, p<0.001) and men with a disability (33.8%; OR=2.07, p<0.001) also had higher odds of experiencing discrimination. Those belonging to one (30.4%; OR=2.60, p<0.001) or two or more (38.2%; OR=3.50, p<0.001) risk groups were increasingly more likely to experience discrimination. Conclusions Discrimination was correlated with ethnicity, sexuality, obesity and disability. Belonging to two or more of the risk groups was associated with substantial increases in the likelihood of experiencing discrimination. Approaches to preventing discrimination need to acknowledge and address the impact of this intersectionality.