Table 2.

Distribution of sociodemographic variables in patients undergoing coronary artery bypass grafting or coronary angioplasty, University Hospital President Dutra- HUUFMA. São Luís, MA, Brazil. 2011.

Sociodemographic variables		n	%
Sex	Male	26	59.1
	Female	18	40.9
Age (years)	65-74	33	75.0
	74-85	11	25.0
Ethnic group	White	17	38.6
	Brown	17	38.6
	Black	10	22.7
Education	Unschooled	14	31.8
	Literate	12	27.3
	Fundamental	9	20.5
	Average	5	11.4
	Higher	4	9.1
Marital status	Single	9	20.5
	Married	19	43.2
	Stable union	6	13.6
	Widower	10	22.7
Income	<1 salary	30	68.2
	1 to 2 wages	10	22.6
	2-3 wages	2	4.6
	3 to 4 wages	21	4.6
Cardiac procedure	CABG	12	27.3
	PTCA	32	72.7
Total		44	100.0

CABG=coronary artery bypass grafting; PTCA=percutaneous transluminal coronary angioplasty