1. Analysis of QMAS Disease Prevalence Data Kent & Medway August 2005 Kent & Medway HIS Produced by Helen Buttivant Senior Public Health Information Analyst, Kent & Medway Health Informatics Service Tel: 01622 793594E-Mail: helen.buttivant@nhs.net

2. Contents of Report: Analysis of Disease Prevalence at 3 levels: National PCT Practice Evaluation of the QMAS data & comparison to other sources of Disease Prevalence Kent & Medway HIS

3. Disease Prevalence at PCT Level Comparison of prevalence between PCTs for each individual condition Comparison of prevalence of every condition in each PCT Kent & Medway HIS

7. Disease Prevalence at Practice Level Comparison of prevalence between Practices for each individual condition Basic analysis of the relationship between practice deprivation and disease prevalence for each individual condition Kent & Medway HIS

9. GP Practice deprivation scores are weighted estimates based on the National Index of Multiple Deprivation Scores for Kent LLSOAs published in 2004. The registered population for each Practice is broken down by postcode. Each postcode is assigned a deprivation score (the score for the LLSOA in which the postcode is located). The deprivation score for the postcode is multiplied by the no. of persons registered with the practice that live within that postcode. This calculation is repeated for all postcodes for that practice. These figures are then summed to give a total for that practice. This total figure is then divided by the total registered population of the practice to give an overall weighted deprivation score. Methodology for calculating GP Practice Deprivation Scores: Kent & Medway HIS

11. Evaluation of the QMAS data Issues regarding data capture and disease register inclusion criteria Data limitations: –Comparison to other sources of national prevalence rates –Local effects Kent & Medway HIS

12. Sources Kent & Medway HIS

13. Sources: CHD - Health Survey for England, 2003 LVD - Heart of England Screening Study 2001: Davies MK, Hobbs FDR, Davis RC, Kenkre JE, Roalfe AK, Hare R, Wosornu D, Lancashire RJ (2001) Prevalence of left-ventricular systolic dysfunction and heart failure in the Echocardiographic Heart of England Screening study: a population based study. The Lancet 358:439-444. Stroke / TIA - Health Survey for England, 2003 Hypertension - Health Survey for England, 2003 Diabetes - Yorkshire Public Health Observatory PBS Diabetes Prevalence Model 2005 COPD - Lung Report III, British Lung Foundation Report 2000 Epilepsy - The National Society for Epilepysy : J.W. Sander, The incidence and prevalence of epilepsy, 2003 Hypothyroidism - Vanderpump MP, Tunbridge WM.Epidemiology and prevention of clinical and subclinical hypothyroidism.Thyroid. 2002 Oct;12(10):839-47. Cancer - ONS National Cancer Intelligence Database, 2002 Asthma – Asthma UK / National Asthma Campaign Kent & Medway HIS

14. What else has been done? Birmingham and Black Country SHA North Tees PCT Our future plans Kent & Medway HIS

15. Any Questions?