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Table 4 Standardized incidence ratios for cardiac events in patients with cirrhosis (n = 234) following liver transplantation

From: Prevalence of pre-transplant electrocardiographic abnormalities and post-transplant cardiac events in patients with liver cirrhosis

  Observed person years Observed events1 Expected events2 SIR 95% CI p-value
Total cardiac events3 728.9 70 13.96 5.014 3.909 - 6.335 <0.001
Total acute coronary syndromes3 728.9 16 4.336 3.69 2.109 - 5.992 <0.001
Total arrhythmic events3 728.9 49 9.624 5.091 3.767 - 6.731 <0.001
Late cardiac events4 846.0 31 17.1 1.813 1.232 - 2.573 0.003
Late acute coronary syndrome4 846.0 13 5.264 2.469 1.315 - 4.223 0.006
Late arrhythmic events4 846.0 14 11.84 1.183 0.647 - 1.984 0.603
  1. SIR, Standardized incidence ratio; CI, Confidence interval. For the calculation of SIRs, data on the occurrence of cardiac events in the general Swedish population were obtained from the national inpatient hospital registry.
  2. 1Observed events; the number of observed events in our cohort.
  3. 2Expected events; the number of events that occurred in the age and gender matched group of the general population.
  4. 3All events occurring after liver transplantation until death or end of follow-up.
  5. 4All events occurring after the immediate inpatient post-transplant period.