Table 2

 Long term effect of perioperative myocardial injury (PMI)* as a risk factor for heart failure

Time after surgery (years)HR† (95% CI)
*PMI is classified as serum AMAT ⩾2.55 μkat/l with AMAT:ALAT ratio ⩾1.5; †HR (reference = serum ASAT <2.55 μkat/l) are given as a function of time after surgery and adjusted for the same variables as in table 1; ‡interaction with time after surgery as a continuous variable.
0–22.3 (1.8 to 3.0)
2–41.9 (1.0 to 3.4)
4–62.4 (1.3 to 4.7)
6–81.3 (0.5 to 3.6)
>82.1 (0.5 to 9.6)
Trend test‡p = 0.31