Research Article 2026-04-21 under-review v1

Reimagining Access and Equity in Australia’s National Bowel Cancer Screening Pathway: A Critical Realist Analysis of Rural Lived Experience

N
Nicole Marinucci Queensland Health
N
Naomi Moy Queensland Health
N
Natasha Koloski Queensland Health
G
Gerald Holtmann Queensland Health

Abstract

Background Bowel cancer remains a leading cause of cancer‑related mortality in Australia, with rural and remote populations experiencing a disproportionate burden due to later‑stage diagnosis and persistent inequities in access to care. Although the National Bowel Cancer Screening Program (NBCSP) has achieved population‑level reductions in morbidity and mortality, participation remains consistently lower in geographically remote communities. Inequities occur across both phases of the screening pathway, immunochemical faecal occult blood test (iFOBT) kit completion and diagnostic colonoscopy follow‑up, reflecting structural barriers including limited accessibility, fragmented continuity of care, and misalignment between program design and rural contexts. Consumer‑centred understanding of lived rural experiences is required to inform equitable program and policy reform. Methods Guided by a critical realist ontology and an Interpretative Phenomenological Approach (IPA), focus groups were conducted with adults residing in rural and remote Australian communities who were eligible for NBCSP participation. The study was co‑developed with a multidisciplinary working group comprising experts in clinical research, public health, gastroenterology, psychology, and health economics, alongside consumer partners, to ensure methodological rigour and policy relevance. Data were analysed iteratively using IPA to identify shared meanings and context‑dependent mechanisms shaping participation across both screening and diagnostic phases.Results Twenty‑seven NBCSP‑eligible participants described systemic barriers limiting equitable access and acceptability. Key mechanisms included: (i) constrained opportunities for kit completion due to narrow access windows and reduced local kit availability, reducing exposure, visibility, and perceived normalisation of screening; (ii) substantial financial, geographic, and logistical burdens, particularly affecting follow‑up colonoscopy; (iii) fragmented referral and navigation pathways, inconsistent general practitioner endorsement, and lack of localised service availability and (iv) the normalisation of reduced access as an expected consequence of remoteness, dampening help‑seeking behaviour. Participants advocated for system‑level reform and locally responsive models, including alternative kit distribution, tailored education and promotion, proactive patient navigation, and coordinated, localised referral pathways.Conclusions Current NBCSP delivery insufficiently accommodates geographic and socioeconomic diversity, perpetuating inequities across the screening continuum. Equity‑oriented, place‑responsive redesign, integrating patient navigation, coordinated pathways, and locally feasible access points offers clear potential to improve participation, completion, and downstream health and economic outcomes.

Citation Information

@article{nicolemarinucci2026,
  title={Reimagining Access and Equity in Australia’s National Bowel Cancer Screening Pathway: A Critical Realist Analysis of Rural Lived Experience},
  author={Nicole Marinucci and Naomi Moy and Natasha Koloski and Gerald Holtmann},
  journal={BMC Public Health},
  year={2026},
  doi={https://doi.org/10.21203/rs.3.rs-9188886/v1}
}
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