Socioeconomic gradients in admission to coronary or intensive care units among Australians presenting with non-traumatic chest pain in emergency departments

Table 2 Number of chest pain presentations over study five-year period by quintiles of the relative index of inequality of socioeconomic disadvantage

	All N = 75,105	RII_1 Highest SES N = 14,551	RII_2 N = 14,578	RII_3 N = 15,170	RII_4 N = 15,318	RII_5 Lowest SES N = 15,488	P value
Presented once	54.9	59.1	58.4	56.7	53.9	46.6	< 0.001
Presented twice	19.4	19.5	18.2	19.1	20.6	19.4
Presented three or more times	25.8	21.4	23.4	24.2	25.5	34.0

ISSN: 1471-227X