Table 2

Mortality and relative risk of MI in the venous thromboembolism cohort compared with the control cohort, according to year of follow up.


First year
After 1 year


Deaths
(n = 1216)
Mortality/1000
person-years
(95% CI)
RR (95%
CI)a
Deaths
(n = 1872)
Mortality/1000
person-years
(95% CI)
RR (95% CI)a

Control cohort
716
16.0 (14.9–17.1)
1
1550
13.9 (13.2–14.6)
1
All VTE cases
500
97.8 (89.6–106.8)
3.8 (3.4–4.3)
322
28.1 (25.2–31.3)
1.6 (1.4–1.8)
     DVT
344
113.4 (102.0–126.1)
4.4 (3.9–5.1)
186
27.7 (24.0–32.0)
1.6 (1.4–1.9)
     PE
156
75.1 (64.2–87.9)
2.9 (2.5–3.5)
136
28.7 (24.2–33.9)
1.6 (1.3–1.9)

CI, confidence interval; DVT, deep vein thrombosis; PE, pulmonary embolism; RR, relative risk; VTE, venous thromboembolism.

aRelative risk estimated by Cox regression adjusted for age, sex, calendar year, consultations in the previous year, cancer, heart failure and ischaemic heart disease.

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