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
population-weighted prevalence of 2.19% for England. Similarly, a population-weighted
prevalence was calculated for each geographical area. The figure for Yorkshire and
Humber Government Office Region was 2.32% giving a deprivation adjustment ratio of
1.059 (2.32 2.19). This model also assumes that the total diabetes prevalence
(diagnosed and undiagnosed) has the same relative risk ratio across the deprivation
quintiles. It is recognised by the PHO that diagnosis rates were likely to be lower in
more deprived areas, and therefore the adjustment for deprivation is an under-estimate
of the gradient of the total (diagnosed and undiagnosed) type 2 diabetes across
deprivation quintiles and as a result the prevalence is likely to be a conservative
estimate.
The estimated number of people with diabetes and the prevalence has been calculated
at PCT level. However, a template (in Excel) has been set up by Y&H PHO so that data
can be entered for any population, and estimates of the number of people with diabetes
produced for these specified populations. At the time of writing the Diabetes Equity
Audit, there were two versions available depending on the data that is available.
Version 1 of the PBS phase 2 diabetes model requires:
Ward where most of population lies (deprivation score is generated).
Percentage of population Black and percentage of population Asian.
Age and gender structure of population with age bands defined as 0-4, 5-14, 15-
24, 25-34, 35-44, 45-54, 55-64, 65-74 and 75+.
Version 2 of the PBS phase 2 diabetes model requires:
Percentage of population within each deprivation quintile (IMD 2004)
Age, gender and ethnic group structure of population with 5-year age bands from
0-4 to 25-29 and 10-year age bands from 30-39 to 70-79 and 80+ and ethnic
group defined as White, Black, Asian and Other.
A new Phase 3 model was available after the Diabetes Equity Audit was almost finished,
but the current model on the Yorkshire and Humber Public Health Observatory website
(www.yhpho.org.uk) is a new model (and the „phase‟ number is not specified).
Phase 2 was more sophisticated especially in terms of deprivation so this model was
used in the Diabetes Equity Audit, although it requires more assumptions to estimate
ethnicity at practice level. The current model, which has been used in this JSNA
Foundation Profile, also requires ethnicity data at practice level and a similar method
has been used to obtain this information as was used for the Diabetes Equity Audit.
From the GP registration file (latest file October 2010), it is known which ward each
patient registered with each practice lives, and an estimate can be derived on their
ethnicity. The distribution by ethnic group by ward is given in Table 34 from the 2001
Census. However, it is known that the percentage of residents from Black and Minority
Ethnic (BME) groups has increased in Hull. It is possible to assume that the same
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