Table 2

Incidence rate of aortic valve reoperation, heart failure admission or death in 3417 patients with porcine aortic bioprostheses according to blood group

Total (n=3417)Blood group
A or AB (n=1724)B or O (n=1693)
EventsIncidence rate per
100 PY (95% CI)
EventsIncidence rate per
100 PY (95% CI)
EventsIncidence rate per
100 PY (95% CI)
Aortic valve reoperation
Follow-up time (years)
 0–1351.1 (0.8 to 1.5)221.3 (0.9 to 2.0)130.8 (0.5 to 1.4)
 1–5340.3 (0.2 to 0.4)170.3 (0.2 to 0.5)170.3 (0.2 to 0.5)
 5–15280.3 (0.2 to 0.4)110.2 (0.1 to 0.4)170.4 (0.2 to 0.6)
 Total1000.4 (0.3 to 0.5)520.4 (0.3 to 0.6)480.4 (0.3 to 0.5)
Heart failure
Follow-up time (years)
 0–11695.3 (4.6 to 6.2)915.7 (4.6 to 7.0)784.9 (4.0 to 6.2)
 1–51761.7 (1.5 to 2.0)941.9 (1.5 to 2.3)821.6 (1.3 to 2.0)
 5–152483.4 (3.0 to 3.8)1253.5 (2.9 to 4.1)1233.3 (2.7 to 3.9)
 Total5982.9 (2.7 to 3.1)3123.0 (2.7 to 3.4)2862.7 (2.4 to 3.1)
Death
Follow-up time (years)
 0–11534.6 (3.9 to 5.4)814.8 (3.9 to 6.0)724.4 (3.5 to 5.5)
 1–55855.2 (4.8 to 5.7)3105.6 (5.0 to 6.2)2754.9 (4.3 to 5.5)
 5–15115512 (12 to 13)56012 (11 to 13)59512 (11 to 13)
 Total19177.9 (7.6 to 8.3)9648.1 (7.6 to 8.6)9537.8 (7.4 to 8.3)
  • PY, person-years.