Prognosis

The risk of dying is increased with   

• an anterior myocardial infarction ^{a b}
• a Q wave infarct ^b

Why?

An anterior MI or Q wave MI increases the risk of dying

Patient	Prognostic Factor	Outcome	CER	OR (95% CI)	NNF+ (95% CI)
myocardial infarction a	anterior MI independent	death at uncertain duration	11%	1.57 (1.26 to 1.96)	19 (12 to 40)
first myocardial infarction b	non-Q wave infarct independent	death at uncertain duration	4.0%	0.08 (0.03 to 0.23)	-27 (-33 to -26)