Labour's NHS Waiting List Reduction: Data Clean-Up Accounts for Significant Share
Analysis by Sky News indicates that nearly one-fifth of the improvement in hospital waiting lists under the Labour government is attributable to non-clinical activity rather than increased medical care. The number of people awaiting treatment has dropped to its lowest level since February 2023, but recent gains have been limited, and data issues obscure the precise reasons for the decline.
Health Secretary's Claims Under Scrutiny
Health Secretary Wes Streeting recently asserted that the government has reduced waiting lists by over 330,000 cases, with hundreds of thousands more patients treated within 18 weeks. He credited this to record levels of care delivered in 2025. However, the waiting list remains 2.7 million cases longer than pre-COVID levels and nearly double the figure from a decade ago.
While the list has fallen by 330,000 in the 18 months since Labour took office, compared to a rise of over 400,000 in the final year and a half of Rishi Sunak's government, not all of this decrease results from enhanced clinical services.
Unreported Removals and Data Validation
A substantial portion of the reduction stems from Labour's incentives for NHS Trusts to improve "validation" efforts. This involves checking waiting lists and removing cases that no longer require treatment, even if those patients have not received NHS care. These cases, known as "unreported removals," are not documented in official NHS data.
Sky News analysis shows 4.6 million such removals in the 18 months under Labour, up from 4.3 million in the previous 18 months under the Conservatives. This increase accounts for approximately 17% of the total shift in waiting list direction, with 83% due to heightened clinical activity.
If unreported removals had stayed at Conservative-era levels, the waiting list would still have decreased, but by only 110,000 instead of 330,000.
Thinktanks Call for Transparency and Sustained Action
Prominent health thinktanks, including the Health Foundation, Nuffield Trust, and The King's Fund, have expressed concerns. While they welcome the overall decline in waiting lists, they emphasize that lasting improvements must come from increased clinical activity, not data cleaning. Each organization has criticized the lack of transparency surrounding unreported removals data.
In response, Chris Roebuck, head of profession for statistics at NHS England, stated that unreported removals have constituted around 15% of patients leaving waiting lists for decades and are now lower than pre-pandemic levels. He attributed the reduction to record levels of operations, tests, and scans, describing validation as a routine clinical process to ensure accurate list management.
Record Trolley Waits Highlight Ongoing Crisis
Other NHS data released on Thursday reveals that emergency care in England reached a critical point in January, with over 71,000 patients experiencing "trolley waits" longer than 12 hours—the highest since records began in 2010. This monthly figure exceeds the total 12-hour waits recorded from August 2010 to November 2021.
Additionally, more than 160,000 trolley waits exceeded four hours in January, setting another monthly record. These statistics underscore persistent challenges in NHS emergency services despite improvements in elective treatment lists.
The Data x Forensics team at Sky News, dedicated to transparent journalism through data analysis and multimedia storytelling, provided this report to clarify complex healthcare trends.
