Corridor Care 2029 — How Will We Know What Helped?

A commitment to reduce corridor care needs more than completed actions. State how the changes should help, measure outcomes and possible harm, and agree how the evidence will inform decisions.

This is an applied example under Right Measures? It also asks Right Problem? and Right Intervention? — the three questions in Why Improvement Programmes Fail.

What is being evaluated?

Corridor care means treating patients in spaces not designed for that care, with risks to safety, dignity and staff. The programme described in this article combines four approaches:

• Specialist support: Getting It Right First Time (GIRFT) teams working with affected trusts to improve patient flow.
• Definition and reporting: consistent recording to make corridor care visible and support accountability.
• Alternatives to admission: new or expanded Same Day Emergency Care (SDEC) units and Urgent Treatment Centres (UTCs).
• Discharge support: a £250 million fund intended to accelerate safe movement through hospital and into community care.

A national ambition to virtually eliminate corridor care needs a defined threshold, population, reporting basis and review date before success can be assessed consistently.

How should the changes help?

Each approach has a different proposed mechanism. Specialist teams may remove avoidable internal delays. Reporting may prompt action but does not itself provide capacity. Admission alternatives may reduce pressure if they safely change the relevant patient pathways. Discharge support may release beds if the staff, services and coordination needed outside hospital are available.

Do not assume one constraint explains every trust. Internal coordination, diagnostic delays, staffing and community capacity may contribute differently. Ask what is limiting safe flow locally and what else must change for an intervention to help. The Corridor Care Bright Spots hub provides cases to investigate, not a universal recipe.

What should be measured?

Agree definitions, a baseline, expected effects and review points before judging results. Examine trust-level variation as well as the national picture.

• Implementation: what was delivered, when, where and with what sustained staffing or funding?
• Early response: are the relevant diagnostic, admission or discharge delays changing? Where discharge is the proposed mechanism, monitor patients who no longer meet criteria to reside in acute care and the reasons for delay.
• Outcome: corridor-care exposure using consistent definitions, with suitable activity denominators. Hours of corridor care are an outcome; completeness of reporting is a measurement-quality indicator.
• Possible harm: readmissions, safety incidents, ambulance handover delays, patient experience and staff workload. Check whether delay or risk moved elsewhere.

Do not splice historical Delayed Transfers of Care data and newer discharge measures into one continuous series without checking comparability. Reporting changes can create apparent shifts. See Types of Measures for the broader framework.

The original June 2026 forecast

The forecast below is retained from the original article, rather than rewritten after results are known. It is a hypothesis, not a finding or a complete evaluation protocol.

Bootstrap CUSUM on national corridor care rates will not show a structural improvement change point by December 2029 unless the discharge constraint is addressed at system level.

Specifically:

• The national definition and reporting initiative will not produce a change point — it will improve data quality but not the underlying rate.
• The GIRFT specialist team programme may produce change points at individual trust level but will not produce a national structural change point.
• The SDEC/UTC expansion may produce a small improvement change point in total emergency admissions but not in corridor care specifically — because corridor care is driven by blocked outflow, not excess inflow.
• The £250m discharge fund will produce temporary relief. If it does not create structural additional social care capacity that is sustained beyond the funding period, it will not produce a lasting change point. Previous equivalent funding rounds did not.

The prediction will be wrong if the ICS model genuinely delivers shared budgets and shared accountability for delayed transfers of care, and if the discharge fund creates structural — not temporary — additional social care capacity. In that case, Bootstrap CUSUM should detect a change point in delayed transfer of care bed-days first, followed by a change point in corridor care rates with a lag of 6–12 months.

ICS means Integrated Care System. The forecast’s discharge-led explanation and timing remain open to challenge. Any operational test needs a specified series, comparable definitions, analysis settings and decision rules; changes to that plan should be dated and explained. An improvement without the predicted discharge sequence would challenge the explanation, not automatically invalidate the improvement.

What the results can establish

Run charts, SPC and Bootstrap CUSUM can help examine change where appropriate to the data. A detected change point does not identify which initiative caused it or prove permanence. No detected change does not automatically mean no benefit. Seasonality, changing demand, reporting and simultaneous interventions need consideration.

Combine outcome analysis with implementation evidence, suitable comparisons and experiences of care. Follow results across seasons and after temporary support ends, then decide what to continue, adapt, stop or scale.

Return to Right Problem? to check the explanation, Right Intervention? to review the change, or Right Measures? to refine evaluation. See PSIRF and Systemic Learning for the patient-safety application.