Prognosis

The risk of dying is increased with previous cardiovascular disease 

• previous myocardial infarction ^a or subsequent recurrent infarction ^{a b}
• previous angina ^{a b} or early post-infarction angina ^a
• a previous stroke ^b
• an increasing number of stenosed coronary vessels ^b or previous CABG ^b

Why?

Cardiovascular disease increases the risk of dying

Patient	Prognostic Factor	Outcome	CER	OR (95% CI)	NNF+ (95% CI)
myocardial infarction a	previous myocardial infarction independent	death at 18 months	3.6%	5.20 (1.50 to 17.97)	8 (3 to 59)
myocardial infarction b	recurrent MI within 1 year independent	death at 12 months	20%	4.76 (4.06 to 5.57)	3 (3 to 3)
first myocardial infarction a	angina for > 1 month before MI independent	death at uncertain duration	12%	1.30 (1.10 to 1.53)	33 (19 to 96)
myocardial infarction b	previous stroke independent	death at 12 months	20%	1.93 (1.56 to 2.38)	8 (6 to 12)
myocardial infarction b	increasing number of vessels with 70% stenosis or more independent	death from heart disease at 2 years	12%	1.90 (1.48 to 2.44)