To do a gender comparison of absolute risk of recurrent myocardial infarction (MI).
Design
Registration of all first and second MI amongst Icelandic males and females 1981–1999.
Methods
The whole of Icelandic population, 40–74 years of age.
Results
The mean recurrence rate (second attack) for men was 45.7/1000 MI survivors/year and for women 39.0/1000 per year. The male/female (M/F) ratio was 1.17, 95% confidence interval 1.00–1.37, P = 0.05 and did not change significantly with age. The M/F ratio for first MI in comparison was two to seven, lowest in the oldest group. The recurrence rate decreased significantly and similarly in both sexes during the observation period.
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