Evaluation of the Better Access to Psychiatrists, Psychologists and GPs through the Medicare Benefits Schedule initiative: component B: an analysis of Medicare Benefits Schedule (MBS) and Pharmaceutical Benefits Scheme (PBS) administrative data

5.4 What is the relative distribution of Better Access and allied health Better Access services used across Divisions of General Practice?

Page last updated: August 2010

The purpose of the current set of analyses was to examine the extent to which mental health need predicts two outcome variables: (1) total MBS–subsidised Better Access services received in 2009 (crude rate per 1,000 population); and (2) total MBS–subsidised allied health Better Access services received in 2009 (crude rate per 1,000 population). The following figure 5.2 and figure 5.3 show the frequency distributions of the rates of Better Access and allied health Better Access services used across the 113 Divisions.

Table 5.3 provides descriptive statistics for the 113 Divisions on each of the outcome measures. The distributions of the outcome measures demonstrated normality.

Total Better Access services used per Division were estimated to be between 43.6 and 486.6 services per 1,000 population. The mean was 223.6 services, and the coefficient of variation was 0.40. Total allied health Better Access services used per Division were estimated to be between 10.8 and 336.3 services per 1,000 population. The mean was 131.3 services, and the coefficient of variation was 0.50.

The following figure 5.4 and figure 5.5 show the overall distribution of the two outcome measures for each of the 113 GP Divisions, in ascending order. These charts illustrate the following:

  • The rate of Better Access services received rates varies between Divisions of General Practice by a factor of 3.4 between the bottom 10% and the top 10%; and

  • The rate of allied health Better Access services received rates vary by a factor of 5.1 between the bottom 10% and the top 10%.

Figure 5.2 Total MBS–subsidised Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years across 113 Divisions of General Practice

Text equivalent below for Figure 5.2 Total MBS–subsidised Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years across 113 Divisions of General PracticeTop of page

Text version of Figure 5.2

This figure shows the normal frequency distribution of MBS-subsidised Better Access services used across the Divisions of General Practice. It shows a range of 43.6 to 486.6 services used per 1,000 population, and a mean of 223.6. The values for the distribution are stated in table 5.3.

Figure 5.3 Total MBS–subsidised allied health Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years across 113 Divisions of General Practice

Text equivalent below for Figure 5.3 Total MBS–subsidised allied health Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years across 113 Divisions of General Practice

Text version of Figure 5.3

This figure shows the normal frequency distribution of MBS-subsidised allied health Better Access services used across the Divisions of General Practice. It shows a range of 10.8 to 336.3 services per 1,000 population, and a mean of 131.3. The values for the distribution are stated in table 5.3.

Figure 5.4 Total MBS–subsidised Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years within each 113 Divisions of General Practice

Text equivalent below for Figure 5.4 Total MBS–subsidised Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years within each 113 Divisions of General Practice
Top of page

Text version of Figure 5.4

This graph shows the overall distribution of total MBS-subsidised Better Access services used for each of the 113 GP Divisions, in ascending order. The distribution rises quite steadily from 43.6 services used per 1,000 population to about 425 services used per 1,000 population. It then jumps to 486.6 services used per 1,000 for the last GP Division in the graph. The graph illustrates the rate of Better Access services used varies between Divisions by a factor of 3.4 between the bottom 10% and the top 10%.

Figure 5.5 Total MBS–subsidised allied health Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years within each 113 Divisions of General Practice

Text equivalent below for Figure 5.5 Total MBS–subsidised allied health Better Access services used in 2009 (rate per 1,000 population) by adults aged 16 to 84 years within each 113 Divisions of General Practice

Text version of Figure 5.5

This graph shows the overall distribution of total MBS-subsidised allied health Better Access services used for each of the 113 GP Divisions, in ascending order. The distribution rises quite steadily from 10.8 services used per 1,000 population to about 275 services used per 1,000 population. It then jumps to 336 services used per 1,000 for the last GP Division in the graph. The graph illustrates the rate of allied health Better Access services used vary by a factor of 5.1 between the bottom 10% and the top 10%.

Table 5.3 Summary statistics for the 2 outcome measures relating to Better Access services used in 2009 for adults aged 16 to 84 years in 113 Divisions of General Practice

RangeMeanSDCoV10th Percentile25th Percentile50th Percentile75th Percentile90th Percentile
Better Access services used (per 1,000)
43.6-486.6
223.6
89.7
0.40
98.3
164.4
221.2
282.6
330.8
Allied health Better Access services used (per 1,000)
10.8-336.3
131.3
65.6
0.50
41.8
85.1
133.7
172.6
211.8

2009 figures have regard to all MBS claims processed up to and including 30 April 2010.
SD, standard deviation; CoV, coefficient of variation. Crude rates. Data are weighted to offset the effects of population size.