Table 1.

Patient characteristics and univariate risk factor analysis for MI after TIA

Variable	Total study population (n=456)	No MI before TIA (n=388)	No incident MI after TIA (n= 344)	Incident MI after TIA (n=44)	Hazard Ratio (95% CI)	P-value
Age at index TIA (mean ± SD; years)	72 ± 14	71±14	71±15	72±12	1.42 (1.10–1.83)*	0.007
Male (%)	43	41	40	55	1.53 (0.84–2.77)	0.16
Hypertension (%)	64	62	61	70	2.02 (1.04–3.92)	0.04
Smoking (%)	55	55	54	57	0.91 (0.50–1.66)	0.75
Diabetes (%)	13	11	11	9	1.12 (0.40–3.14)	0.83
Lipid lowering treatment (%)	5	5	4	11	2.42 (0.95–6.16)	0.06
Antithrombotic treatment (%)	75	84	83	88	1.25 (0.49–3.18)	0.64
TIA etiology subtype (%)
Large artery atherosclerosis	20	19	18	27	1.51 (0.78–2.93)	0.22
Cardioembolic	15	13	14	9	0.74 (0.26–2.08)	0.57
Lacunar	5	6	5	9	1.62 (0.58–4.54)	0.36
Unknown	55	57	58	48	0.67 (0.37–1.22)	0.19
Other	4	5	5	7	1.44 (0.45–4.68)	0.54

^*Hazard Ratio is per 10 years

Abbreviations: MI: myocardial infarction; TIA: transient ischemic attack