Table 1

Incidence rate and relative risk of myocardial infarction in the venous thromboembolism cohort compared with the control cohort in the first year of follow up.


Myocardial
infarction
cases (n = 159)
Incidence
rate per 1000
person-years
Relative risk
(95% CI)a

Control cohort (n = 43 382)
136
3.4 (2.9–4.0)
1
Venous thromboembolism cohort (n = 4890)
23


Deep vein thrombosis
15
5.7 (3.4–9.4)
1.7 (1.0–2.9)
Pulmonary embolism
8
4.8 (2.4–9.6)
1.5 (0.7–3.1)
Secondary venous thromboembolism
13
5.2 (3.0–8.9)
1.6 (1.0–2.8)
Idiopathic venous thromboembolism
10
5.6 (3.0–10.4)
1.6 (0.8–3.2)

aAdjusted relative risk derived from Cox regression models including sex, age, calendar year, heart failure, hypertension, and smoking.

Huerta et al. Thrombosis Journal 2008 6:10   doi:10.1186/1477-9560-6-10