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Introduction: Commercial tobacco use was systematically embedded as a valuable commodity through colonisation that continues to be exploited for profit by the Tobacco Industry. There have been significant declines in current smoking prevalence among Aboriginal and Torres Strait Islander peoples 18 years and over, from 55% in 1994 to 43% in 2018–2019. This paper seeks to better understand smoke‐free behaviours, and to systematically quantify associations between a range of SDOH and non‐smoking/never‐smoking among Aboriginal and Torres Strait Islander adults (≥18) living in regional Australia. Objective: To explore the social determinants of health (SDOH) related to non‐ and never‐smoking among Aboriginal and Torres Strait Islander peoples in regional Australia. Design: Cross‐sectional analysis of the NATSIHS, weighted to the Aboriginal and Torres Strait Islander adult population living in regional Australia, was conducted. Participants were characterised as people who were current smokers, never‐smokers and non‐smokers (ex‐ and never‐smokers). The social determinants of health exposures related to socioeconomic position, well‐being and access to healthcare. Setting: Regional Australia is distinct from urban and remote areas, based on the ASGS Remoteness Structure (ABS) 2018–2019. Participants: Aboriginal and Torres Strait Islander adults (≥18 years) who were selected, consented and asked questions about smoking in the National Aboriginal and Torres Strait Islander Health Survey (NATSIHS 2018/19). Results: High income was associated with non‐smoking (Prevalence Ratio [PR] = 2.07; 95% CI: 1.66–2.57) and never‐smoking (PR = 2.02; 1.46–2.79), as was completing year 10 (non‐smoking PR = 1.34; 1.12–1.61 and never‐smoking PR = 1.56; 1.20–2.03). Better food security was associated with a higher prevalence of never‐smoking (PR = 2.42; 1.48–3.98). Lower psychological distress scores were associated with non‐smoking (PR = 1.30; 1.10–1.53) and never‐smoking (PR = 1.56; 1.21–2.01). Never‐smoking was more frequent in participants reporting no experiences of unfair treatment (PR = 1.59; 1.22–2.06). Having a usual healthcare provider was associated with non‐smoking (PR = 1.38; 1.02–1.86). Positive exposure to the SDOH were associated with non‐ and never‐smoking among Aboriginal and Torres Strait Islander adults in regional Australia. Structural and systemic changes to address the SDOH, including discrimination and racism, are expected to accelerate non‐smoking behaviours and improve health outcomes for Aboriginal and Torres Strait Islander peoples. [ABSTRACT FROM AUTHOR]

Objective: Colorectal cancer has geographic inequities in Australia, with higher mortality rates and lower participation in the National Bowel Cancer Screening Program (NBCSP) in remote and rural areas. The at‐home kit is temperature‐sensitive, necessitating a 'hot zone policy' (HZP); kits are not sent when an area's average monthly temperature is above 30°C. Australians in HZP areas are susceptible to potential screening disruptions but may benefit from well‐timed interventions to improve participation. This study describes the demographics of HZP areas and estimates the impacts of potential screening changes. Methods: The number of individuals in HZP areas was estimated, as well as correlations with remoteness, socio‐economic and Indigenous status. The potential impacts of screening changes were estimated. Results: Over a million eligible Australians live in HZP areas, which are more likely to be remote/rural, have lower socio‐economic status and higher Indigenous populations. Predictive modelling estimates that any 3‐month screening disruption would increase CRC mortality rates up to 4.1 times more in HZP areas vs unaffected areas, while targeted intervention could decrease mortality rates 3.4 times more in HZP areas. Conclusion: People living in affected areas would be negatively impacted by any NBCSP disruption, compounding existing inequities. However, well‐timed health promotion could have a stronger impact. [ABSTRACT FROM AUTHOR]