# Treat the deprivation gradient in lung cancer as a defect in delivery that can be fixed and measured

Source: https://onco.cc/ideas/idea-lung-deprivation-gradient-treated-as-a-defect-in-delivery/  
OnCo record `idea-lung-deprivation-gradient-treated-as-a-defect-in-delivery` (Idea). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Poorer patients with lung cancer are less likely to be offered surgery or chemotherapy, at the same stage, in systems that are free at the point of use. That is a fixable problem in how care is delivered, not a fact about the disease.

## Summary

Forrest's meta-analysis of 23 studies found that lower socioeconomic position was associated with a reduced likelihood of receiving any lung cancer treatment (odds ratio 0.79), of surgery and of chemotherapy, and that the gap was not explained by stage at presentation or by which health system the patient was in. The authors named it an intervention-generated inequality: produced by how care is organised, not by the disease.

Lung cancer is the cancer where this matters most, because incidence itself follows the same gradient, so the disadvantage compounds. The idea is to treat the gradient as an operational defect with named causes (distance to a thoracic surgical centre, transport, time off work, comorbidity assessment thresholds, referral behaviour, and whether the patient is offered a treatment at all) and to measure the closing of it as an outcome in its own right. UK and NHS specifics (Targeted Lung Health Check coverage and uptake, NICE positions and Cancer Drugs Fund status, molecular testing turnaround, thoracic surgery and radiotherapy capacity, audit indicators and trial access) are on the UK and NHS page for lung cancer and are not restated here.

## Fields

- Kind: Idea
- Last checked: 2026-09-25
- Tags: lung-evidence
- Hypothesis: A bundle aimed at the named delivery defects (screening and diagnostics placed in deprived areas, transport and appointment support, prehabilitation to raise fitness before surgical assessment, and mandatory recording of treatments offered as well as delivered) narrows the treatment-receipt gap between deprivation quintiles at matched stage, and narrows the stage-adjusted survival gap with it.
- Rationale: The effect is documented, sizeable, stage-independent and present across health systems, which means it is not a funding problem alone. Each proposed component has independent evidence: mobile screening units raise uptake in deprived areas, prehabilitation raises measured fitness before thoracic surgery, and recording what was offered rather than only what was given makes the decision point visible where it is currently invisible.
- Proposed test: A stepped-wedge implementation trial across cancer networks, with treatment receipt at matched stage by deprivation quintile as the primary outcome and stage-adjusted one-year survival as the secondary. Requires linked registry and treatment data, and an agreed measure of treatment offered as distinct from treatment received. Three to five years.
- Maturity: early-clinical
- Actor: policy

## Connected records

- ideas: [Take lung screening scanners to supermarket car parks in the poorest areas](https://onco.cc/ideas/idea-prev-mobile-lung-screening-deprived-areas/)
- roadmaps: [Global access and affordability roadmap: essential medicines and generics → biosimilars and frugal trials → reliance, pooling and homegrown innovation](https://onco.cc/roadmaps/global-access-roadmap/), [Lung cancer roadmap: from Doll and Hill and the naming of tobacco, through the cytotoxic plateau, computed tomography screening, EGFR and ALK, immunotherapy by PD-L1, the perioperative trials and PACIFIC, to DLL3 in small-cell disease and a 2032 registry watch](https://onco.cc/roadmaps/lung-cancer-evidence-roadmap/)
- cancers: [Lung cancer (all types)](https://onco.cc/cancers/lung-cancer/), [Non-small-cell lung cancer](https://onco.cc/cancers/nsclc/), [Small-cell lung cancer](https://onco.cc/cancers/sclc/)
- fronts: [Early Detection & Screening](https://onco.cc/fronts/early-detection/), [Surgery & Interventional](https://onco.cc/fronts/surgery/)
- bottlenecks: [Fragmented care and guideline gaps](https://onco.cc/bottlenecks/b-care-fragmentation/), [Most of the world has almost no cancer care](https://onco.cc/bottlenecks/b-global-access/), [Not enough oncologists, nurses, pathologists, physicists](https://onco.cc/bottlenecks/b-workforce/), [Trials do not represent the people who get cancer](https://onco.cc/bottlenecks/b-trial-diversity/), [Weak real-world evidence and registries](https://onco.cc/bottlenecks/b-real-world-evidence/)
- key papers: [Evaluation of USPSTF Lung Cancer Screening Guidelines Among African American Adult Smokers](https://onco.cc/key-papers/paper-aldrich-uspstf-screening-african-american-smokers-jama-oncol-2019/), [Screening for Lung Cancer: US Preventive Services Task Force Recommendation Statement](https://onco.cc/key-papers/paper-uspstf-lung-cancer-screening-jama-2021/), [Socioeconomic inequalities in lung cancer treatment: systematic review and meta-analysis](https://onco.cc/key-papers/paper-forrest-socioeconomic-inequalities-lung-cancer-treatment-plos-med-2013/)

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