Table 1.

Variables used to index the multidimensional array of average GP services used in the previous 2 weeks

Variable	Categories	Number of categories
Sex	Male, Female	2
Age group	15-20, 21-44, 45-64, 65 + years	4
Personal income tercile	tercile 1, tercile 2, tercile 3	3
Remoteness	Major cities of Australia, Inner regional Australia, Other more remote areas	3
Self reported health status	Excellent/very good, good, fair/poor	3
Employment Status	Employed, Unemployed (looking for work), Not in the labour force	3