Prognosis

The risk of a recurrent stroke following a TIA or minor stroke is increased with: 

• increasing age ^a
• recurrent minor strokes or a lacunar stroke ^a
• diabetes mellitus ^a
• hypertension ^a
• a prior myocardial infarction ^a

Minor stroke: increasing age and diabetes increases the risk of death or a recurrent stroke

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
TIA or minor stroke a	age >65 years	recurrent stroke or death at 2 years	27%	2.55 (1.23 to 5.25)	1 (1 to 8)
	diabetes mellitus			2.78 (1.47 to 5.27)	2 (1 to 8)

Minor stroke: recurrent minor strokes, hypertension or a previous MI increase the risk of a major stroke

Patient	Prognostic Factor	Outcome	CER	OR (95% CI)	NNF+ (95% CI)
first stroke and minor or no disability a	recurrent minor strokes	major stroke at 10 years	?10%	2.80 (1.30 to 6.20)	7 (3 to 38)
	lacunar stroke		8.2%	3.10 (1.90 to 4.60)	7 (5 to 16)
	prior MI		?10%	2.90 (1.30 to 6.80)	7 (3 to 38)
	hypertension		4.7%	3.00 (1.40 to 6.40)	12 (5 to 57)