Table 1.

Clinical characteristics

	Coronary angiogram not performed (n=79)	Coronary angiogram performed (n=38)	p Value
Age	74±10	70±8	0.05
Males	62%	74%	0.2
Length of stay	5.6±4.2	8.1±6.4	0.01
Troponin I levels	2.0±4.6	4.7±10.6	0.06
New ECG changes	30%	57%	0.01
Recurrent chest pain	27%	49%	0.02
Diabetes	53%	45%	0.4
Hypertension	75%	87%	0.1
Months since CABG	140±103	148±84	0.7
Number of grafts	3.1±1	2.8±0.9	0.1
Ejection fraction	52±16	49±13	0.4
Creatinine	114±56	111±49	0.8
Haemoglobin	123±22	131±16	0.05
Albumin	35±4	37±4	0.02
GRACE score	150±29	158±36	0.2

CABG, coronary artery bypass graft surgery; GRACE, Global Registry of Acute Cardiac Events.