The distribution of mental health need across the 113 Divisions of General Practice was then estimated. Using age, gender and section of state information collected by the 2007 NSMHWB, it was possible to calculate rates of mental health need for each of the 84 strata defined by gender (male and female), age group (16–19, 20–24, 25–29, 30–34, 35–39, 40–44, 45–49, 50–54, 55– 59, 60–64, 65–69, 70–74, 75–79, 80–84 years) and section of state (capital cities, other metropolitan regions, remainder). By taking this population category data from the 2007 NSMHWB, and weighting each Division according to its population structure (as defined by the same 84 strata), it was then possible to model the proportion of residents in each Division who would be expected to be meet the criteria for mental health need.

Table 5.2 summarises the distribution characteristics of the measure of mental health need across the 113 Divisions of General Practice in Australia. Between 29.5% and 34.5% of the adult population in each Division were categorised as meeting criteria for the definition of mental health need. The mean was 31.8%, and the coefficient of variation was 0.03, indicating relatively little variability between Divisions on this measure. The distribution is also shown in figure 5.1.

Figure 5.1 Estimated proportion of adult population aged 16 to 84 years with any potential need for mental health care in 113 Divisions of General Practice

Text equivalent below for Figure 5.1 Estimated proportion of adult population aged 16 to 84 years with any potential need for mental health care in 113 Divisions of General Practice

Text version of Figure 5.1

The figure shows the percentage of the adult population in each of the 113 Divisions of General Practice with any potential need for mental health care. The percentage ranged from 29.5% to 34.5%.

Table 5.2 Summary statistics for mental health need among adults aged 16 to 84 years in 113 Divisions of General Practice in Australia

RangeMeanSDCoV10th Percentile25th Percentile50th Percentile75th Percentile90th Percentile
Mental health need
29.5-34.5%
31.8%
1.1%
0.03
30.4
31.0
31.9
32.8
33.3

SD, standard deviation; CoV, coefficient of variation. Data are weighted to offset the effects of population size.