Prognosis

The risk of dying is increased with 

• increasing age  ^{a b}
• female sex ^{a b} (women over 65) ^b
• hospitals that admit few cases of MI ^a  

Why?

Female sex and increasing age increase the risk of dying

Patient	Prognostic Factor	Outcome	CER	OR (95% CI)	NNF+ (95% CI)
myocardial infarction a	female independent	death at months	14%	1.18 (1.16 to 1.20)	26 (23 to 28)
first myocardial infarction b	advanced age (> 70) independent	death at uncertain duration	4.0%	7.0 (4.8 to 10.2)	5 (4 to 8)