Prevention

Encourage patients to stop smoking ^a  

Why?

Stopping smoking or never smoking reduces the risk of stroke.

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
healthy a	never smoked independent	stroke at 12 years	0.38%	0.39 (0.30 to 0.52)	-430 (-550 to -380)
	stopped smoking 2 to 4 years ago independent			0.21 (0.04 to 0.96)	-330 (-6600 to -270)