Prognosis

The risk of recurrence is increased following an ischaemic stroke with: ^a

• increasing age ^b
• a prior stroke ^a
• diabetes mellitus ^{a b} or elevated glucose levels on admission ^a
• hypertension at discharge ^a
• heavy alcohol use ^a

Ischaemic stroke: diabetes, a previous stroke or hypertension increase the risk of a recurrent stroke

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
ischaemic stroke a	diabetes independent	recurrent stroke at 12 months	10%	1.66 (1.14 to 2.42)	15 (7 to 71)
	prior stroke independent			1.74 (1.19 to 2.55)	14 (6 to 53)
ischaemic stroke a	heavy alcohol use independent	recurrent stroke at 5 years	22%	2.50 (1.40 to 4.40)	3 (1 to 11)
	hypertension at discharge independent			1.60 (1.01 to 2.60)	8 (3 to 460)
	5.5 mmol/l increase in admission glucose independent			1.40 (1.10 to 1.70)

Ischaemic stroke: increasing age increases the risk of having a stroke

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
ischaemic stroke a	age increase of 10 years independent	recurrent stroke at 5 years	25%	1.20 (1.10 to 1.36)