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National Diabetes Audit 2021-22, Report 1: Care Processes and Treatment Targets, Overview

Audit, Survey, Other reports and statistics

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Additional information


Change to mapping used for integrated care board (ICB) analysis

An issue was found with the mapping used to define ICB in this report resulting in larger than expected cohorts for each ICB. This has been corrected in this report and has resulted in slight changes to the results of analyses broken down by ICB.

21 December 2023 00:00 AM

Changes to NDA reporting

NHS England are currently reviewing the routine production of NDA State of the Nation reports. Please note that data will still be released via dashboards and standalone data files whilst this review is being conducted.

To help inform this review we would be grateful if users can provide feedback on their use of the State of the Nation reports using the feedback survey available in the ‘Related links' section of this page.

3 June 2024 00:00 AM

Additional information

Definitions

Annual review

This is a GP appointment where the annual NICE recommended care processes are undertaken.

Diabetes

Diabetes is a condition where the amount of glucose in the blood is too high because the pancreas doesn’t produce enough insulin. Insulin is a hormone produced by the pancreas that allows glucose to be used as a body fuel and other nutrients to be used as building blocks. There are two main types of diabetes: type 1 diabetes (no insulin); type 2 diabetes (insufficient insulin).

  • ‘Type 1’ includes where a person is recorded as having type 1 diabetes in the National Diabetes Audit (NDA).
  • ‘Type 2 and other’ includes where a person is recorded as having type 2 diabetes, Maturity-onset Diabetes of the Young (MODY), other or non-specified diabetes in the NDA.
Specialist service

This is a service (often hospital based but sometimes delivered in a community setting) which includes diabetes specialists working in multidisciplinary teams. These teams usually comprise physicians (diabetologists), diabetes specialist nurses and dieticians; it may also include clinical psychologists.

Care processes

NICE recommends the 8 care processes annually: blood pressure, body mass index (BMI), foot risk surveillance, HbA1c, serum cholesterol, serum creatinine, smoking status, urine albumin-to-creatinine ratio (UACR); and the ninth care process, eye screening (see Retinal screening (eye exam)/retinopathy below for details on frequency).

Blood pressure

Blood pressure is a measurement of the force driving the blood through the arteries. Blood pressure readings contain 2 figures, e.g. 130/80. The first is known as the systolic pressure which is produced when the heart contracts. The second is the diastolic pressure which is when the heart relaxes to refill with blood.

BMI measurement

BMI is calculated from weight and height and used to classify body weight as underweight, healthy, overweight and obese.

Category BMI value
Underweight < 18.5
Healthy weight 18.5 to 24.9
Overweight 25 to 29.9
Obese

≥ 30

Foot check

This examination checks the blood supply and sensation (feeling) in the feet. Loss of either is a risk for foot disease.

HbA1c

This is a blood test for average blood glucose levels during the previous 2 to 3 months.

Retinal screening (eye exam)/retinopathy

Diabetic retinopathy is a microvascular disease specific to the people with diabetes. Everyone with diabetes from the age of 12 is eligible for diabetic eye screening to detect the development of diabetic retinopathy. 

In England there is to be a move to alternate year retinal screening for those known not to have retinopathy for the past 2 screening occasions. This was implemented to some extent early during the pandemic in order to deal with the reduced screening capacity.

Serum cholesterol

This blood test measures a type of fat that can damage blood vessels.

Serum creatinine

This is a blood test used to measure kidney function.

Smoking status

This records whether the person is a smoker. Smoking increases the diabetic risk for heart attacks and stroke.

Urine Albumin-to-Creatinine Ratio (UACR)

UACR is a ratio between two measured substances urine albumin and urine creatinine. Unlike a urine dipstick test for albumin, UACR is unaffected by variation in urine concentration.

Treatment targets (NICE defines target levels to reduce risks of complications for people with diabetes)

Blood pressure

High levels are a risk for heart attacks and strokes; high blood pressure also drives progression of eye and kidney disease.

The treatment target within the NDA for people with diabetes is defined as blood pressure ≤ 140/80.

HbA1c

The closer this is to normal (less than 42 mmol/mol) the lower the risk is of all long-term complications of diabetes.

The treatment target within the NDA for people with diabetes is defined as HbA1c ≤ 58 mmol/mol.

Statin prescription

The prescription of statins for people with diabetes that fall into either of the primary or secondary prevention groups.

  • Primary prevention of cardiovascular disease (CVD): Those aged between 40 and 80 years old, with no history of admission to hospital for cardiovascular disease.
  • Secondary prevention of CVD: Those of any age, with a confirmed history of admission to hospital for cardiovascular disease.
  • Combined prevention of CVD: The prescription of statins for people with diabetes that fall into either of the primary or secondary prevention groups.
Meeting all 3 treatment targets

Having HbA1c ≤ 58 mmol/mol, blood pressure ≤ 140/80 and for people falling in the combined prevention CVD group: receiving statins.

For those aged 12 and under, meeting all 3 treatment targets is defined as having HbA1c ≤ 58 mmol/mol only as other treatment targets are not recommended in the NICE guidelines for this age group.

Disclosure control
  • Disclosure control has been applied to mitigate the risk of patient identification.
  • Zeros are reported, and all numbers are rounded to the nearest 5, unless the number is 1 to 7, in which case it is rounded to 5. This allows for more granular data to be made available.
  • Rounded numbers are used to calculate percentages therefore numbers may not sum as expected.
  • Percentages are not calculated where the rounded denominator is 20 or less (small denominators), and where numbers are small percentages are volatile and should be treated with caution.
Quality Improvement Collaboratives
  • NDA data is available for all work streams (1). Improvement methodologies have been advocated since 2016/17 (2,3,4). Presently the NDA is supporting application of these principles via Quality Improvement Collaboratives (5). We recommend that ICBs advocate and support use of these approaches to improving overall achievements and reducing variation.

Acknowledgements



Last edited: 26 September 2024 10:49 am


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