joint strategic needs assessment foundation profile - JSNA

Interative Hull Atlas: www.hullpublichealth.org/Pages/hull_atlas.htm More information: www.jsnaonline.org and www.hullpublichealth.org
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Number and prevalence on dementia QOF register over time
2006/07 2007/08 2008/09 2009/10
N % N % N % N %
Y02344 1,645 N/A N/A N/A N/A 8 0.41 4 0.24
B81027 5,976 24 0.41 27 0.45 23 0.38 26 0.44
B81040 16,805 44 0.26 38 0.22 41 0.24 48 0.29
B81047 7,377 17 0.23 15 0.21 12 0.17 8 0.11
B81089 3,583 6 0.18 14 0.41 28 0.79 23 0.64
B81631 3,425 4 0.13 2 0.06 4 0.12 5 0.15
B81683 1,644 8 0.52 6 0.41 4 0.26 6 0.36
Y02896 343 N/A N/A N/A N/A N/A N/A 0 0.00
B81017 6,800 11 0.15 13 0.18 15 0.22 12 0.18
B81018 6,602 5 0.07 4 0.06 5 0.07 3 0.05
B81032 2,478 4 0.14 8 0.29 9 0.34 8 0.32
B81046 9,068 13 0.14 16 0.18 23 0.26 29 0.32
B81692 1,814 1 0.05 2 0.11 2 0.11 2 0.11
Y00955 2,556 3 0.18 5 0.22 3 0.12 4 0.16
Y02748 60 N/A N/A N/A N/A N/A N/A 1 1.67
Doncaster PCT has created a model which can be used to produce the estimated
number of people with diagnosed dementia (Doncaster PCT 2008). Projecting Older
People Population Information (POPPI) System has also produced local and national
estimates and projections for people with dementia. This information is presented within
Table 389.
In general when such models have been produced, the model is based on research
undertaken elsewhere in the UK examining the prevalence of diagnosed disease in the
community, which has then been modelled and applied to different populations such as
those living in a particular PCT area. Therefore, the accuracy of the estimates depend
on the quality of the initial research and the modelling itself. If the original research did
not include very deprived areas, it is very difficult to generalise and apply the model to
very deprived areas like Hull. Furthermore, there are many reasons why the prevalence
could differ among practices (see section 12.13 on page 782 for more information).
Further information about problems associated with models can be found in the
Association of Public Health Observatories Technical Briefing (Association of Public
Health Observatories 2011) and in section 12.1 on page 770. Therefore, just because
practices have a particularly low prevalence or a relatively large difference between the
registers and the model, it does not necessarily mean that they are performing badly in
any way relative to other general practices. Nevertheless, a comparison of the
differences between the modelled prevalence and the practice list registers can act as a
starting point for investigation. Practices with a low prevalence or a relatively large
difference between the model and the register estimates can be examined further and
considered in relation to patient characteristics using local knowledge. Differences
might just reflect that the model is not a very good fit for Hull. For reference, the mean
age of practice patients (Table 28) and mean deprivation scores (Table 49) for each
practice.
The Doncaster model just uses estimated prevalence for men and women for different
age groups (0-29, 30-64, 65-69, 70-74, …, 90-94 and 95+ years) which are applied to
Joint Strategic Needs Assessment Foundation Profile – Hull Health Profile: Release 3. March 2011. 696