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 asthma QOF register over time
2004/05 2005/06 2006/07 2007/08 2008/09 2009/10
N % N % N % N % N % N %
Y02344 1,645 N/A N/A N/A N/A N/A N/A N/A N/A 90 4.57 83 5.05
B81027 5,976 514 8.16 455 7.58 404 6.82 403 6.74 385 6.40 398 6.66
B81040 16,805 791 4.82 804 4.88 835 4.98 864 5.09 907 5.37 891 5.30
B81047 7,377 441 5.87 425 5.75 420 5.74 447 6.18 474 6.55 520 7.05
B81089 3,583 174 5.43 172 5.30 158 4.75 174 5.13 168 4.74 176 4.91
B81631 3,425 191 5.91 141 4.50 162 5.11 163 5.02 182 5.32 189 5.52
B81683 1,644 118 7.67 115 7.25 101 6.62 103 7.10 122 8.05 126 7.66
Y02896 343 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 23 6.71
B81017 6,800 440 5.99 418 5.96 448 6.20 431 5.95 436 6.39 420 6.18
B81018 6,602 437 6.67 474 7.24 592 8.72 490 7.28 478 7.17 493 7.47
B81032 2,478 155 5.09 144 4.84 138 4.99 136 5.01 144 5.47 120 4.84
B81046 9,068 634 7.45 621 7.34 635 7.06 631 7.19 642 7.19 638 7.04
B81692 1,814 98 5.22 73 3.67 84 4.53 99 5.57 116 6.45 126 6.95
Y00955 2,556 N/A N/A 34 5.07 91 5.49 123 5.53 146 5.74 185 7.24
Y02748 60 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 19 31.7
Doncaster PCT has created a model which can be used to produce the estimated
number of people with diagnosed asthma (Doncaster PCT 2008). 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 may be examined.
The model estimates the prevalence of people who have been treated for asthma from
age-gender-specific prevalence rates from Key Health Statistics from General Practice
1998 (Office for National Statistics 1998) with the average prevalence used across
Townsend‟s deprivation scores. The model is not adjusted for deprivation or ethnicity or
other factors. The results of the modelling and the actual diagnosed numbers of
patients with asthma are given in Table 295. The model does not necessarily represent
Joint Strategic Needs Assessment Foundation Profile – Hull Health Profile: Release 3. March 2011. 609