Best glucose levels on record: how the NHS artificial pancreas is helping kids
NHS data shows the artificial pancreas rollout has helped children and young people with Type 1 reach the best average glucose control on record.
Here is a piece of genuinely good news. NHS figures show that children and young people using a hybrid closed loop system, often called an artificial pancreas, have reached the steadiest average glucose on record. A hybrid closed loop is an insulin pump and a glucose sensor that talk to each other and adjust background insulin automatically. Across the rollout, the median HbA1c, a blood test that reflects your average glucose over the past couple of months, fell from 58 to 55.5 mmol/mol. That is a group average moving in a good direction, not a target anyone has to hit.
- HbA1c is a rough average of your glucose over the last two to three months, measured in mmol/mol here in the UK.
- A median is just the middle of the group, half higher and half lower, so it describes the rollout, not a score for any one child.
- A lower average usually means steadier days and less firefighting of highs and lows, and over the long term it lowers the risk of complications.
- This is real-world NHS data from the actual rollout in England and Wales, not a trial, which is part of why it is encouraging.
- Children and young people are the priority group for these systems, so families waiting are near the front of the queue.
What the NHS figures actually show
As the hybrid closed loop rollout has reached more children and young people with Type 1 in England and Wales, the median HbA1c has fallen from 58 to 55.5 mmol/mol, described as the best average glucose since records began for this group. Because these are real numbers from the NHS rollout rather than a controlled trial, they reflect everyday use, not ideal conditions.
The reason a system like this helps is fairly simple. The sensor reads glucose every few minutes and the pump nudges the background insulin up or down in response, so more of the day sits in a steadier range without someone having to catch every drift by hand. It is still a hybrid system, though, so meals are not automatic: carbs still get counted and a mealtime dose still gets given.
Why steadier beats chasing a number
It is tempting to read 55.5 as the number to aim for, but that is not what this is. A median describes a whole group, and a sensible personal target is an individual thing worked out with your team. The value in these figures is not the digits, it is what steadier glucose feels like day to day: fewer 3am alarms, fewer sudden lows to treat, and less of the mental load that comes from constantly firefighting.
The long game matters too. A lower average glucose over years reduces the risk of the complications that Type 1 can bring to eyes, kidneys, nerves and heart, which is exactly why steadier control in childhood is worth celebrating. If you or your child are still waiting, these numbers are also evidence for the adults further back in the queue that the technology genuinely delivers.