Publication, Part of [MI] National Obesity Audit
National Obesity Audit, July 2025 - September 2025 [Management Information]
Other reports and statistics
Data submission summary
This page provides a summary of submissions to the HES and CSDS data sets. More detailed figures are available in the dashboards:
Data are presented in descending order with the most recent data period listed first.
Bariatric surgery
Count of patients having a primary bariatric surgical procedure (due to obesity)
| Data period | Count |
| Q2 2025/26 (provisional) | 1,635 |
| Q1 2025/26 (provisional) | 1,655 |
| Q4 2024/25 (final) | 1,662 |
| Q3 2024/25 (final) | 1,712 |
Count of providers with at least 1 primary bariatric surgical procedure (due to obesity)
| Data period | Count |
| Q2 2025/26 (provisional) | 45 |
| Q1 2025/26 (provisional) | 47 |
| Q4 2024/25 (final) | 48 |
| Q3 2024/25 (final) | 46 |
Weight management services
Count of providers submitting WMS data to CSDS
| Total | Tier 2 | Tier 3 | Both | |
| September 2025 | 37 | 9 | 26 | 2 |
| August 2025 | 37 | 11 | 24 | 2 |
| July 2025 | 38 | 10 | 26 | 2 |
Proportion of patients with at least 1 BMI recording (height and weight recorded simultaneously)
| Tier 2 | Tier 3 | Both | |
| September 2025 | 61.4 | 4.7 | 34.0 |
| August 2025 | 45.0 | 4.0 | 44.1 |
| July 2025 | 43.6 | 4.6 | 44.8 |
Proportion of patients with an NHS number submitted
| Tier 2 | Tier 3 | Both | |
| September 2025 | 23.4 | 99.7 | 69.2 |
| August 2025 |
11.8 |
100.0 | 69.1 |
| July 2025 | 12.5 | 99.8 | 70.8 |
Last edited: 7 January 2026 4:32 pm