Is headspace making a difference to young people’s lives?
Evaluation-of-headspace-program Evaluation-of-headspace-program
Appendix B Figure B14 Percentage of the youth population with access, by round (Rounds 1 – 14) Figure B15 Additional increase in the percentage of youth covered by round (Rounds 1 – 14) The distribution of need for mental health services Rationale The prevalence of mental health disorders in young people is not evenly distributed across demographic groups and is strongly associated with social disadvantage. As a result, it is likely that there are regions across Australia with greater numbers of young people who require services for mental health problems. Identifying areas of high need characterised by disadvantage and large youth populations or with an above average prevalence of youth mental health disorders may be useful in determining current access to, as well as allocation of, future centres. The current model of centre allocation gives greater weight to those areas with low SEIFA scores, reflecting higher levels of socioeconomic disadvantage, and to rural and remote areas. This model assumes that disadvantage and remoteness are associated with a higher youth mental health burden Social Policy Research Centre 2015 headspace Evaluation Final Report 140
Appendix B and less access to mainstream services, and consequently, a greater need for headspace services. However, additional factors may be associated with the prevalence of mental health disorder in young people, and identification of such factors, which can be incorporated into the model of future centre allocation, could result in more effective and efficient resource allocation. It is important to note that this modelling is constrained by data availability. Rather than providing an optimal weighting strategy for centre allocation, this analysis aims to provide an alternative methodology for consideration by the Department. Small area estimates of prevalence of mental health disorders Method YMM wave one data were used to determine socio-demographic factors associated with the prevalence of mental health disorders in young people. A Poisson regression model was fitted to the YMM data at the SA1 level to predict the prevalence of mental health disorder by socio-demographic variables which were individually associated with prevalence of disorder. Variables included in the model were limited to those which are available for all small areas across Australia and that were collected in YMM and could be matched to census data. This model was applied to census data at the small area level (SA1) to allow for estimation of the prevalence of mental health disorders in young people across the whole of Australia. In order to asses current and likely access for young people with a mental health disorder, the number of young people within 10 and 30 km of headspace centres for existing Rounds 1-8 and hypothetical Rounds 9-14, using the current model of allocation, was calculated using the method described above. It is important to note that implicit in this model, and any extrapolation based on it, is the assumption that the demographic characteristics of 4-17 year olds are similar to those of 18-25 year olds. Results Socio-demographic factors which were identified as being individually associated with the prevalence of mental health disorders in young people were: • SEIFA • income • family type • Indigenous status • housing tenure • language spoken at home • born overseas. This approach represents a potential methodological improvement over an approach which allocates resources on the basis of SEIFA and remoteness. Although SEIFA and remoteness are intended as proxies for disadvantage and potential service need, the weights applied are not clearly justified. In contrast, the small area estimation process empirically derives the association between risk factors and mental health disorders. The small area estimation process includes a mix of household and individual level factors (such as income, family type) and SEIFA, which is an area-level estimate. There are substantial differences in the prevalence of mental health disorders in young people across geographic areas in Australia, at geographic levels germane to service delivery. For example, Figure B16 indicates substantial differences in the prevalence of mental health disorders in the Sydney metropolitan area at the SA1 level. Figure B16 displays the prevalence and number of young people in Inner Sydney who are estimated to be at risk of a mental health disorder. This figure displays the catchments of five headspace centres. These centres include headspace Camperdown, headspace Ashfield, headspace Chatswood, headspace Brookvale and headspace Bondi Junction. These figures aim to demonstrate the differences between the two indicators of demand for any defined service catchment area, those indicators being the prevalence of risk of mental health disorder and number of young people residing in the area. For example, many small areas (SA1s) within the central Sydney area have a low prevalence of disorder, relative to other areas in Australia. However, Social Policy Research Centre 2015 headspace Evaluation Final Report 141
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Appendix B<br />
and less access <strong>to</strong> mainstream services, and consequently, a greater need for <strong>headspace</strong> services.<br />
However, additional fac<strong>to</strong>rs may be associated with the prevalence of mental health disorder in <strong>young</strong><br />
people, and identification of such fac<strong>to</strong>rs, which can be incorporated in<strong>to</strong> the model of future centre<br />
allocation, could result in more effective and efficient resource allocation. It is important <strong>to</strong> note that<br />
this modelling is constrained by data availability. Rather than providing an optimal weighting strategy<br />
for centre allocation, this analysis aims <strong>to</strong> provide an alternative methodology for consideration by the<br />
Department.<br />
Small area estimates of prevalence of mental health disorders<br />
Method<br />
YMM wave one data were used <strong>to</strong> determine socio-demographic fac<strong>to</strong>rs associated with the<br />
prevalence of mental health disorders in <strong>young</strong> people. A Poisson regression model was fitted <strong>to</strong> the<br />
YMM data at the SA1 level <strong>to</strong> predict the prevalence of mental health disorder by socio-demographic<br />
variables which were individually associated with prevalence of disorder. Variables included in the<br />
model were limited <strong>to</strong> those which are available for all small areas across Australia and that were<br />
collected in YMM and could be matched <strong>to</strong> census data. This model was applied <strong>to</strong> census data<br />
at the small area level (SA1) <strong>to</strong> allow for estimation of the prevalence of mental health disorders in<br />
<strong>young</strong> people across the whole of Australia.<br />
In order <strong>to</strong> asses current and likely access for <strong>young</strong> people with a mental health disorder, the<br />
number of <strong>young</strong> people within 10 and 30 km of <strong>headspace</strong> centres for existing Rounds 1-8 and<br />
hypothetical Rounds 9-14, using the current model of allocation, was calculated using the method<br />
described above. It is important <strong>to</strong> note that implicit in this model, and any extrapolation based on it,<br />
is the assumption that the demographic characteristics of 4-17 year olds are similar <strong>to</strong> those of 18-25<br />
year olds.<br />
Results<br />
Socio-demographic fac<strong>to</strong>rs which were identified as being individually associated with the prevalence<br />
of mental health disorders in <strong>young</strong> people were:<br />
• SEIFA<br />
• income<br />
• family type<br />
• Indigenous status<br />
• housing tenure<br />
• language spoken at home<br />
• born overseas.<br />
This approach represents a potential methodological improvement over an approach which allocates<br />
resources on the basis of SEIFA and remoteness. Although SEIFA and remoteness are intended as<br />
proxies for disadvantage and potential service need, the weights applied are not clearly justified. In<br />
contrast, the small area estimation process empirically derives the association between risk fac<strong>to</strong>rs<br />
and mental health disorders. The small area estimation process includes a mix of household and<br />
individual level fac<strong>to</strong>rs (such as income, family type) and SEIFA, which is an area-level estimate.<br />
There are substantial <strong>difference</strong>s in the prevalence of mental health disorders in <strong>young</strong> people across<br />
geographic areas in Australia, at geographic levels germane <strong>to</strong> service delivery. For example, Figure<br />
B16 indicates substantial <strong>difference</strong>s in the prevalence of mental health disorders in the Sydney<br />
metropolitan area at the SA1 level. Figure B16 displays the prevalence and number of <strong>young</strong> people<br />
in Inner Sydney who are estimated <strong>to</strong> be at risk of a mental health disorder. This figure displays the<br />
catchments of five <strong>headspace</strong> centres. These centres include <strong>headspace</strong> Camperdown, <strong>headspace</strong><br />
Ashfield, <strong>headspace</strong> Chatswood, <strong>headspace</strong> Brookvale and <strong>headspace</strong> Bondi Junction. These<br />
figures aim <strong>to</strong> demonstrate the <strong>difference</strong>s between the two indica<strong>to</strong>rs of demand for any defined<br />
service catchment area, those indica<strong>to</strong>rs being the prevalence of risk of mental health disorder<br />
and number of <strong>young</strong> people residing in the area. For example, many small areas (SA1s) within the<br />
central Sydney area have a low prevalence of disorder, relative <strong>to</strong> other areas in Australia. However,<br />
Social Policy Research Centre 2015<br />
<strong>headspace</strong> Evaluation Final Report<br />
141