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Table 1 Definitions of variables and descriptive statistics

From: What explains the regional variation in the use of general practitioners in Australia?

Variable nameDefinitionMeanSD
Dependent variables
Number of GP visits per capita=Total GP services (MBS and DVA) in SLAs/population in each SLA in 2009–105.581.08
Explanatory variables: demand-side factors
Age distribution
 Age 0–9Proportion of population aged 0–90.120.02
 Age 10–29Proportion of population aged 10–290.260.05
 Age 30–44 (base group)Proportion of population aged 30–440.200.03
 Age 45–64Proportion of population aged 45–640.270.04
 Age 65 and aboveProportion of population aged 65 and over0.140.05
Share of maleProportion of male population50.331.86
ASGC remoteness index
 Major city (base group)=1 if in major city0.460.50
 Inner regional area=1 if in inner regional areas0.260.44
 Rural and remote areas=1 if in outer regional, remote, and very remote areas0.280.45
SEIFA-IRSD index
 25th percentile and below (the most disadvantaged)=1 if below 25th percentile of SEIFA0.200.40
 25th–50th percentile=1 if 25th–50th percentile and below of SEIFA0.270.44
 50th–75th percentile=1 if 50th–75th percentile and below of SEIFA0.250.44
 Above 75th percentile (base group - the most advantaged)=1 if above 75th percentile of SEIFA0.280.45
Proportion of Aboriginal populationProportion taken up by Aboriginal population3.531.08
Proportion of concession card holdersProportion of population holding concession cards10.981.92
Share of fair or poor self-assessed health populationShare of people who report fair or poor self-reported health in each SLA14.673.75
Chronic disease and conditions (%)
 Type 2 diabetesProportion of population having Type 2 diabetes3.530.83
 Circulatory system diseaseProportion of population having circulatory system disease22.715.34
 Respiratory system diseaseProportion of population having respiratory system disease26.102.96
Proportion of people with profound or severe disability living in the communityProportion of people who have profound or severe disability living in the community3.531.08
Proportion of people with high/very high level of psychological distressProportion of people who have high/very high level of psychological distress10.981.92
Health-related factors (%)
 Current smokersProportion of current smokers (aged 18 and above)20.353.75
 Alcohol consumption at levels of high risk to healthProportion of people consuming alcohol at levels of a high risk to health (aged 18 and above)5.832.26
 Physical inactivityProportion of persons who are physically inactive (aged 18 and above)35.996.05
 Obese personsProportion of persons who are obese (aged 18 and above)18.033.23
Access to services (%)
 Delayed purchasing prescribed medicationProportion of people aged 18 years and over who delayed purchasing prescribed medication because they could not afford it8.672.75
 Have difficulty in accessing serviceProportion of people aged 18 years and over who had difficulty in accessing services25.034.54
Have difficulty in transportationProportion of people aged 18 years and over who often has a difficulty with transport or cannot get to places needed3.030.87
Explanatory variables: supply-side factors
Physician density
 Number of specialists per 1000 populationNumber of GPs per 1000 population in each LGA0.852.59
 Number of GPs per 1000 populationNumber of specialists per 1000 population in each LGA1.090.50
Number of EDs by SLAs
 No ED (base group)=1 if there is no EDs in a SLA0.380.49
 1–2 EDs=1 if there are 1–2 EDs in a SLA0.440.50
 3 or more EDs=1 if there are 3 or more EDs in a SLA0.180.38